glupteba | 3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122

Resubmissions

04/04/2024, 17:30

240404-v3bzssdf4w10

04/04/2024, 15:38

240404-s29tbsbe3x10

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04/04/2024, 17:30

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General

Target
3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Size 4.1MB
Sample240404-v3bzssdf4w
SHA256 3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122
MD5 e2d21962c915bda170ab3b65d4c31313
SHA1 9eb22d5b1f1df8694575244d7c4ef009807e661e
SHA512 c34858c05505473838ba35b93d2446f8f1fac72873258987cdc482017ba6f74d4b630e9a6ba2498034635f339e30cf87208544800aca0f96aefc40473b8d3d52
SSDEEP 98304:gCeBGx3cgoWt2rHW1U559GC9as8ULpQIV5sk9so2FegdYADjK0bSqg3Ld9I:uBk3cZrHfb9Z9auTeo2FjHDvb32k
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 18 IoCs

resource	yara_rule
behavioral2/memory/4896-2-0x0000000005110000-0x00000000059FB000-memory.dmp	family_glupteba
behavioral2/memory/4896-3-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4896-55-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4896-57-0x0000000005110000-0x00000000059FB000-memory.dmp	family_glupteba
behavioral2/memory/1236-68-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1236-122-0x0000000004BA0000-0x0000000004FA3000-memory.dmp	family_glupteba
behavioral2/memory/1236-157-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-256-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-267-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-271-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-275-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-279-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-283-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-287-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-291-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-295-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-299-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/3404-303-0x0000000000400000-0x0000000002F43000-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
2412	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3404	csrss.exe
4088	injector.exe
588	windefender.exe
2268	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023214-260.dat	upx
behavioral2/memory/588-264-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2268-269-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2268-277-0x0000000000400000-0x00000000008DF000-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-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\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	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
File created	C:\Windows\rss\csrss.exe	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

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

pid	Process
3520	sc.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
3388	schtasks.exe
976	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	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\22\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	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\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	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\22\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.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\22\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	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\Policies\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\22\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4832	powershell.exe
4832	powershell.exe
4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
3368	powershell.exe
3368	powershell.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
4024	powershell.exe
4024	powershell.exe
976	powershell.exe
976	powershell.exe
5060	powershell.exe
5060	powershell.exe
1464	powershell.exe
1464	powershell.exe
920	powershell.exe
920	powershell.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
3404	csrss.exe
3404	csrss.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
3404	csrss.exe
3404	csrss.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
3404	csrss.exe
3404	csrss.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe
4088	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	powershell.exe
Token: SeDebugPrivilege	4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Token: SeImpersonatePrivilege	4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
Token: SeDebugPrivilege	3368	powershell.exe
Token: SeDebugPrivilege	4024	powershell.exe
Token: SeDebugPrivilege	976	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	1464	powershell.exe
Token: SeDebugPrivilege	920	powershell.exe
Token: SeSystemEnvironmentPrivilege	3404	csrss.exe
Token: SeSecurityPrivilege	3520	sc.exe
Token: SeSecurityPrivilege	3520	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 4832	4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	89
PID 4896 wrote to memory of 4832	4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	89
PID 4896 wrote to memory of 4832	4896	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	89
PID 1236 wrote to memory of 3368	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	99
PID 1236 wrote to memory of 3368	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	99
PID 1236 wrote to memory of 3368	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	99
PID 1236 wrote to memory of 5028	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	101
PID 1236 wrote to memory of 5028	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	101
PID 5028 wrote to memory of 2412	5028	cmd.exe	103
PID 5028 wrote to memory of 2412	5028	cmd.exe	103
PID 1236 wrote to memory of 4024	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	104
PID 1236 wrote to memory of 4024	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	104
PID 1236 wrote to memory of 4024	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	104
PID 1236 wrote to memory of 976	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	122
PID 1236 wrote to memory of 976	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	122
PID 1236 wrote to memory of 976	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	122
PID 1236 wrote to memory of 3404	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	108
PID 1236 wrote to memory of 3404	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	108
PID 1236 wrote to memory of 3404	1236	3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe	108
PID 3404 wrote to memory of 5060	3404	csrss.exe	110
PID 3404 wrote to memory of 5060	3404	csrss.exe	110
PID 3404 wrote to memory of 5060	3404	csrss.exe	110
PID 3404 wrote to memory of 1464	3404	csrss.exe	116
PID 3404 wrote to memory of 1464	3404	csrss.exe	116
PID 3404 wrote to memory of 1464	3404	csrss.exe	116
PID 3404 wrote to memory of 920	3404	csrss.exe	118
PID 3404 wrote to memory of 920	3404	csrss.exe	118
PID 3404 wrote to memory of 920	3404	csrss.exe	118
PID 3404 wrote to memory of 4088	3404	csrss.exe	120
PID 3404 wrote to memory of 4088	3404	csrss.exe	120
PID 588 wrote to memory of 3924	588	windefender.exe	126
PID 588 wrote to memory of 3924	588	windefender.exe	126
PID 588 wrote to memory of 3924	588	windefender.exe	126
PID 3924 wrote to memory of 3520	3924	cmd.exe	127
PID 3924 wrote to memory of 3520	3924	cmd.exe	127
PID 3924 wrote to memory of 3520	3924	cmd.exe	127

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\3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
"C:\Users\Admin\AppData\Local\Temp\3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4832
- C:\Users\Admin\AppData\Local\Temp\3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.exe
  "C:\Users\Admin\AppData\Local\Temp\3a7259cb6547266d44b1e380bfea5c4bc07c7a2523ad6cd7ce66139fa16b7122.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:1236
- - 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:3368
- - 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:5028
  - - 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:2412
- - 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:4024
- - 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:976
- - 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:3404
  - - 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:5060
  - - 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:3388
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3800
  - - 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:1464
  - - 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:920
  - - 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:4088
  - - 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:976
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:588
    - - 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:3924
      - 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:3520

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2268

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

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_11yaehzq.dda.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_11yaehzq.dda.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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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

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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 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
MD5 SHA1 SHA512

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