glupteba | e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b

Analysis

max time kernel
64s
max time network
77s
platform
windows10-1703_x64
resource
win10-20240319-en
resource tags

arch:x64arch:x86image:win10-20240319-enlocale:en-usos:windows10-1703-x64system
submitted
18/04/2024, 23:14

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General

Target
e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Size 4.2MB
Sample240418-28ca3shf76
SHA256 e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b
MD5 8c18c266855273b21b52b3a49f61fe58
SHA1 ffebe1aab1f42ae962611fd83ee80c9988ee29b6
SHA512 477b08a8b74018d0c5ba879b6acbd0d7dea71e54f4907c79aaf68dda070fd9df4070fee96734274d57257bb2f29cce71d96abac20b78340a9b0aac47431d375b
SSDEEP 98304:mxYk/Wd4gprCGADohyqBdv1Fi5ytzZrDpDNz:YnWmu2kBdS54nBNz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence trojan

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 10 IoCs

resource	yara_rule
behavioral2/memory/2984-2-0x00000000050F0000-0x00000000059DB000-memory.dmp	family_glupteba
behavioral2/memory/2984-3-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/2984-302-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/2984-304-0x00000000050F0000-0x00000000059DB000-memory.dmp	family_glupteba
behavioral2/memory/2356-305-0x0000000004C70000-0x0000000005078000-memory.dmp	family_glupteba
behavioral2/memory/2356-306-0x0000000005080000-0x000000000596B000-memory.dmp	family_glupteba
behavioral2/memory/2356-309-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/2356-804-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/2356-1049-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1044-1056-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2288	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1044	csrss.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3971934951-2222591486-1444465656-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
File opened for modification	C:\Windows\rss	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2444	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
3244	powershell.exe
3244	powershell.exe
3244	powershell.exe
2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
4268	powershell.exe
4268	powershell.exe
4268	powershell.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
2432	powershell.exe
2432	powershell.exe
2432	powershell.exe
1912	powershell.exe
1912	powershell.exe
1912	powershell.exe
4316	powershell.exe
4316	powershell.exe
4316	powershell.exe
4108	powershell.exe
4108	powershell.exe
4108	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Token: SeImpersonatePrivilege	2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
Token: SeDebugPrivilege	4268	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeDebugPrivilege	1912	powershell.exe
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeDebugPrivilege	4108	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 3244	2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	72
PID 2984 wrote to memory of 3244	2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	72
PID 2984 wrote to memory of 3244	2984	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	72
PID 2356 wrote to memory of 4268	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	77
PID 2356 wrote to memory of 4268	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	77
PID 2356 wrote to memory of 4268	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	77
PID 2356 wrote to memory of 2324	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	79
PID 2356 wrote to memory of 2324	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	79
PID 2324 wrote to memory of 2288	2324	cmd.exe	81
PID 2324 wrote to memory of 2288	2324	cmd.exe	81
PID 2356 wrote to memory of 2432	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	82
PID 2356 wrote to memory of 2432	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	82
PID 2356 wrote to memory of 2432	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	82
PID 2356 wrote to memory of 1912	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	84
PID 2356 wrote to memory of 1912	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	84
PID 2356 wrote to memory of 1912	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	84
PID 2356 wrote to memory of 1044	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	86
PID 2356 wrote to memory of 1044	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	86
PID 2356 wrote to memory of 1044	2356	e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe	86
PID 1044 wrote to memory of 4316	1044	csrss.exe	87
PID 1044 wrote to memory of 4316	1044	csrss.exe	87
PID 1044 wrote to memory of 4316	1044	csrss.exe	87
PID 1044 wrote to memory of 4108	1044	csrss.exe	94
PID 1044 wrote to memory of 4108	1044	csrss.exe	94
PID 1044 wrote to memory of 4108	1044	csrss.exe	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
"C:\Users\Admin\AppData\Local\Temp\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3244
- C:\Users\Admin\AppData\Local\Temp\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe
  "C:\Users\Admin\AppData\Local\Temp\e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b.exe"
  2⤵
  - Windows security bypass
  - Windows security modification
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4268
- - C:\Windows\System32\cmd.exe
    C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2324
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      Modifies data under HKEY_USERS
      PID:2288
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2432
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1912
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1044
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4316
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:2444
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2552
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_ld1syuqo.ybd.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ld1syuqo.ybd.ps1
Size 1B
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d
MD5 db01a2c1c7e70b2b038edf8ad5ad9826
SHA1 540217c647a73bad8d8a79e3a0f3998b5abd199b
SHA512 c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6
MD5 SHA1 SHA512

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StartupProfileData-Interactive

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 18KB
SHA256 927c99a6c4a88a8ffc8949323ea9c67d585658c05d8dec03bbe75d5c54daf547
MD5 9f900ceafe2c039fdaa756f42e971c35
SHA1 46527a1b639a5ab280395d3bccf0193f205ddeae
SHA512 06570526ea610bba86279f761572e83d6bd50bc99fd0a891b955ad4fd534f0c740f3ee7183ba380dd7055a598097e5ff922fc197be5c9d6aa9e2c6a70b1f6a78
SSDEEP 384:aAbx3aU1lh/jZ4VtHgaBDoU1UlbKAi4301R4MgIGUNLloqeBPsqMI2GQfn8L4Ger:V8UR94zgaB8U2v2MMZVboqMsy2VSq
MD5 SHA1 SHA512 SSDEEP

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StartupProfileData-Interactive

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 18KB
SHA256 5ea626edff224d5afb62e1c090cde78a0067033473c29a01e16a4948b12c5f5c
MD5 518acaa10865ac06ec3218584bca9d77
SHA1 d471de43f302e5ef28a97631c5c1d3fe8cc79f49
SHA512 6d489099ddc2b8ec8df32d635bb662c1fdea31d1fa07cbda886e79d0b29003c7302ff33af64a6432c288b60af10565b368933a5c1406f70b10ab03ebb685ed21
SSDEEP 384:QA47mZOa7g4XhgoteIADgfl8sLxKAi4301RMMdaIGmftlo6eBP6MFgW18Dn0OL4z:cS5MI2/PDS7L12wMd/pHo6MXgWGD/q
MD5 SHA1 SHA512 SSDEEP

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StartupProfileData-Interactive

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 18KB
SHA256 86472d4f71f51455685ccff0681a8d3cdb020c1c35606a1db5241ea45bc7b2e8
MD5 ced415557c20eb7f1e24c6bea57b3517
SHA1 3b91cbc30c4b4af88ca1845785dcd63a786d4237
SHA512 bef051c7773850ebad2b9b7b7fcc1a9fd98955481ee2bc96b42d28e852b4d9d2d7cb830f083f6f16413231286e33b4848972fc8666ff7deca1358660c75617de
SSDEEP 384:ZAbtHsXIgoteIAMba0iXdH6P44o01BHSHcftloFBPJze78KRCFYL0D8:yd0P/Pmana/bSH4HoTJ6gKR9Y4
MD5 SHA1 SHA512 SSDEEP

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StartupProfileData-Interactive

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 18KB
SHA256 46b8a811f2750bfc7998e6163712806944f172014f399a0675a39c4c9b5600ea
MD5 0957e23c37b9a3c82f5ebac8e6ae3a42
SHA1 d6170c64b184ec58c15f7682fde8cd3723ac70ac
SHA512 6d1660d1555d784fc1d596d70ec612fc1247d6cee01711000b365c2d0d3f0369ef66c079bb3c046f0b1151ecd2869f17fd5050ae17cc562688b5ba8c0f79f2a2
SSDEEP 384:T2bbXOa7ZsXL1mEOG95obKAi4301RoMgIGUNLlZyeBPhVMY2GQfncJL4GeS2ya:Kn3V0LcEOGrov28MZVbZyMF2Vaq
MD5 SHA1 SHA512 SSDEEP

Submit Download

csrss.exe

Path C:\Windows\rss\csrss.exe
Size 4.2MB
SHA256 e73dbc6032b57b1f3c1fd883de855ca8015ff94a56248cc14d32e78aa971a70b
MD5 8c18c266855273b21b52b3a49f61fe58
SHA1 ffebe1aab1f42ae962611fd83ee80c9988ee29b6
SHA512 477b08a8b74018d0c5ba879b6acbd0d7dea71e54f4907c79aaf68dda070fd9df4070fee96734274d57257bb2f29cce71d96abac20b78340a9b0aac47431d375b
SSDEEP 98304:mxYk/Wd4gprCGADohyqBdv1Fi5ytzZrDpDNz:YnWmu2kBdS54nBNz
MD5 SHA1 SHA512 SSDEEP

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memory/1044-1056-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/1044-1053-0x0000000005200000-0x00000000055F9000-memory.dmp

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memory/1912-808-0x0000000006E50000-0x0000000006E60000-memory.dmp

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memory/1912-805-0x0000000007EE0000-0x0000000008230000-memory.dmp

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memory/1912-828-0x000000006FEB0000-0x0000000070200000-memory.dmp

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memory/1912-827-0x000000006FE40000-0x000000006FE8B000-memory.dmp

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memory/1912-806-0x0000000006E50000-0x0000000006E60000-memory.dmp

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memory/1912-1046-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/1912-803-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/1912-833-0x0000000006E50000-0x0000000006E60000-memory.dmp

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memory/2356-804-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/2356-306-0x0000000005080000-0x000000000596B000-memory.dmp

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memory/2356-309-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/2356-305-0x0000000004C70000-0x0000000005078000-memory.dmp

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memory/2356-1049-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/2356-587-0x0000000004C70000-0x0000000005078000-memory.dmp

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memory/2432-800-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/2432-581-0x000000006FE40000-0x000000006FE8B000-memory.dmp

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memory/2432-560-0x0000000006C10000-0x0000000006C20000-memory.dmp

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memory/2432-561-0x0000000006C10000-0x0000000006C20000-memory.dmp

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memory/2432-582-0x000000006FE90000-0x00000000701E0000-memory.dmp

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memory/2432-559-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/2984-2-0x00000000050F0000-0x00000000059DB000-memory.dmp

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memory/2984-299-0x0000000004CF0000-0x00000000050EF000-memory.dmp

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memory/2984-302-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/2984-304-0x00000000050F0000-0x00000000059DB000-memory.dmp

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memory/2984-1-0x0000000004CF0000-0x00000000050EF000-memory.dmp

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memory/2984-3-0x0000000000400000-0x0000000003017000-memory.dmp

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memory/3244-77-0x000000000A510000-0x000000000A52E000-memory.dmp

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memory/3244-12-0x0000000007F60000-0x0000000007FC6000-memory.dmp

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memory/3244-6-0x0000000007110000-0x0000000007146000-memory.dmp

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memory/3244-7-0x0000000073010000-0x00000000736FE000-memory.dmp

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memory/3244-8-0x0000000007280000-0x0000000007290000-memory.dmp

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memory/3244-9-0x0000000007280000-0x0000000007290000-memory.dmp

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memory/3244-10-0x00000000078C0000-0x0000000007EE8000-memory.dmp

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memory/3244-11-0x0000000007730000-0x0000000007752000-memory.dmp

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memory/3244-13-0x0000000007FD0000-0x0000000008036000-memory.dmp

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memory/3244-14-0x00000000082C0000-0x0000000008610000-memory.dmp

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memory/3244-15-0x0000000008130000-0x000000000814C000-memory.dmp

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memory/3244-16-0x0000000008780000-0x00000000087CB000-memory.dmp

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memory/3244-301-0x0000000073010000-0x00000000736FE000-memory.dmp

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memory/3244-282-0x000000000A6D0000-0x000000000A6D8000-memory.dmp

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memory/3244-277-0x000000000A6F0000-0x000000000A70A000-memory.dmp

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memory/3244-84-0x000000000A790000-0x000000000A824000-memory.dmp

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memory/3244-83-0x0000000007280000-0x0000000007290000-memory.dmp

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memory/3244-73-0x000000007F070000-0x000000007F080000-memory.dmp

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memory/3244-74-0x000000000A530000-0x000000000A563000-memory.dmp

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memory/3244-76-0x000000006FD70000-0x00000000700C0000-memory.dmp

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memory/3244-82-0x000000000A570000-0x000000000A615000-memory.dmp

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memory/3244-75-0x000000006FD20000-0x000000006FD6B000-memory.dmp

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memory/3244-66-0x00000000097B0000-0x0000000009826000-memory.dmp

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memory/3244-35-0x0000000008A90000-0x0000000008ACC000-memory.dmp

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memory/4268-335-0x000000006FE90000-0x00000000701E0000-memory.dmp

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memory/4268-334-0x000000006FE40000-0x000000006FE8B000-memory.dmp

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memory/4268-555-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/4268-341-0x0000000006850000-0x0000000006860000-memory.dmp

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memory/4268-313-0x0000000007580000-0x00000000078D0000-memory.dmp

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memory/4268-340-0x00000000090C0000-0x0000000009165000-memory.dmp

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memory/4268-311-0x0000000006850000-0x0000000006860000-memory.dmp

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memory/4268-312-0x0000000073110000-0x00000000737FE000-memory.dmp

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memory/4268-310-0x0000000006850000-0x0000000006860000-memory.dmp

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memory/4268-314-0x0000000007C80000-0x0000000007CCB000-memory.dmp

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memory/4268-333-0x000000007F220000-0x000000007F230000-memory.dmp

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memory/4316-1059-0x0000000073070000-0x000000007375E000-memory.dmp

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memory/4316-1060-0x0000000008400000-0x0000000008750000-memory.dmp

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memory/4316-1057-0x00000000074A0000-0x00000000074B0000-memory.dmp

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memory/4316-1058-0x00000000074A0000-0x00000000074B0000-memory.dmp

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