glupteba | 653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1

Analysis

max time kernel
150s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 12:33

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Size 4.1MB
Sample240517-prezeshf27
SHA256 653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1
MD5 32b2d806f6f5abb56dc9d9938208ca19
SHA1 45133bcba426eb4a081911dff8c21ff71334118e
SHA512 127f96669f14f36d69446809baaaaa068a8d53252598a7b1c18d095fe811e6afe0017a69c4c61919e321e09e69c665efc1c7f255ef4edfa7d7cb9f762812fcf8
SSDEEP 98304:Md7tSzSG1TEQyj2soCVZzfOSLUhtCaFAX/iUIATxmmpvA2aCdQuFREnEre:ORMSLQaVNfPUP9FaqUIATxXaCdFFREnn
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 19 IoCs

resource	yara_rule
behavioral1/memory/2960-2-0x0000000004C00000-0x00000000054EB000-memory.dmp	family_glupteba
behavioral1/memory/2960-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2960-4-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2960-57-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2960-58-0x0000000004C00000-0x00000000054EB000-memory.dmp	family_glupteba
behavioral1/memory/2960-55-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2576-83-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2576-139-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-140-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-224-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-234-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-236-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-239-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-242-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-246-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-248-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-251-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-254-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/3396-258-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2448	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3396	csrss.exe
4572	injector.exe
4880	windefender.exe
4604	windefender.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0008000000023537-228.dat	upx
behavioral1/memory/4880-229-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4604-232-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4880-233-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4604-237-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4604-243-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.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

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
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
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	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4424	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
540	powershell.exe
728	powershell.exe
3932	powershell.exe
3600	powershell.exe
4956	powershell.exe
3932	powershell.exe
3188	powershell.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4552	schtasks.exe
4724	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.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\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
540	powershell.exe
540	powershell.exe
540	powershell.exe
2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
728	powershell.exe
728	powershell.exe
728	powershell.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
3932	powershell.exe
3932	powershell.exe
3932	powershell.exe
3600	powershell.exe
3600	powershell.exe
3600	powershell.exe
4956	powershell.exe
4956	powershell.exe
4956	powershell.exe
3932	powershell.exe
3932	powershell.exe
3932	powershell.exe
3188	powershell.exe
3188	powershell.exe
3188	powershell.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
3396	csrss.exe
3396	csrss.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
3396	csrss.exe
3396	csrss.exe
4572	injector.exe
4572	injector.exe
3396	csrss.exe
3396	csrss.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe
4572	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	540	powershell.exe
Token: SeDebugPrivilege	2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Token: SeImpersonatePrivilege	2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
Token: SeDebugPrivilege	728	powershell.exe
Token: SeDebugPrivilege	3932	powershell.exe
Token: SeDebugPrivilege	3600	powershell.exe
Token: SeDebugPrivilege	4956	powershell.exe
Token: SeDebugPrivilege	3932	powershell.exe
Token: SeDebugPrivilege	3188	powershell.exe
Token: SeSystemEnvironmentPrivilege	3396	csrss.exe
Token: SeSecurityPrivilege	4424	sc.exe
Token: SeSecurityPrivilege	4424	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 540	2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	103
PID 2960 wrote to memory of 540	2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	103
PID 2960 wrote to memory of 540	2960	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	103
PID 2576 wrote to memory of 728	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	108
PID 2576 wrote to memory of 728	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	108
PID 2576 wrote to memory of 728	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	108
PID 2576 wrote to memory of 2372	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	111
PID 2576 wrote to memory of 2372	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	111
PID 2372 wrote to memory of 2448	2372	cmd.exe	113
PID 2372 wrote to memory of 2448	2372	cmd.exe	113
PID 2576 wrote to memory of 3932	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	114
PID 2576 wrote to memory of 3932	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	114
PID 2576 wrote to memory of 3932	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	114
PID 2576 wrote to memory of 3600	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	117
PID 2576 wrote to memory of 3600	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	117
PID 2576 wrote to memory of 3600	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	117
PID 2576 wrote to memory of 3396	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	119
PID 2576 wrote to memory of 3396	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	119
PID 2576 wrote to memory of 3396	2576	653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe	119
PID 3396 wrote to memory of 4956	3396	csrss.exe	120
PID 3396 wrote to memory of 4956	3396	csrss.exe	120
PID 3396 wrote to memory of 4956	3396	csrss.exe	120
PID 3396 wrote to memory of 3932	3396	csrss.exe	125
PID 3396 wrote to memory of 3932	3396	csrss.exe	125
PID 3396 wrote to memory of 3932	3396	csrss.exe	125
PID 3396 wrote to memory of 3188	3396	csrss.exe	128
PID 3396 wrote to memory of 3188	3396	csrss.exe	128
PID 3396 wrote to memory of 3188	3396	csrss.exe	128
PID 3396 wrote to memory of 4572	3396	csrss.exe	130
PID 3396 wrote to memory of 4572	3396	csrss.exe	130
PID 4880 wrote to memory of 4652	4880	windefender.exe	136
PID 4880 wrote to memory of 4652	4880	windefender.exe	136
PID 4880 wrote to memory of 4652	4880	windefender.exe	136
PID 4652 wrote to memory of 4424	4652	cmd.exe	137
PID 4652 wrote to memory of 4424	4652	cmd.exe	137
PID 4652 wrote to memory of 4424	4652	cmd.exe	137

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\653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
"C:\Users\Admin\AppData\Local\Temp\653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:540
- C:\Users\Admin\AppData\Local\Temp\653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe
  "C:\Users\Admin\AppData\Local\Temp\653b2d7d12e25b6f0317d60020278d0c1c0b407960ce0252511d0ad7ed41c8a1.exe"
  2⤵
  - 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:2576
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:728
- - 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:2372
  - - 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
      PID:2448
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3932
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3600
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3396
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4956
  - - 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:4552
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4108
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3932
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3188
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4572
  - - 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:4724
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4880
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4652
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:4424

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4532,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3404 /prefetch:8
1⤵
PID:724

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_1nqquxdy.e45.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1nqquxdy.e45.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

Submit Download

powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

Submit Download