glupteba | f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 10:15

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General

Target

f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Size

4.1MB
MD5

64205290b5d5fb08308f23ecd621e401
SHA1

f89e93cbad277071230f37909b6c93393aa53d67
SHA256

f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1
SHA512

1127ffeafedc28563fca9b9719b77bd201c075cacf302c37a302c15582635deb1e092857090caba577432d3e1d3fd3187ddbe9c08771e1932952179845e1263a
SSDEEP

98304:/nLDm1XoLdMR8t8Rupb9uumF9S8JB25VPPQ2VTa74pIHCaet:/fE4ht8Q1UumFLAPQ2VTFpIiaw

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba payload 11 IoCs

resource	yara_rule
behavioral2/memory/4888-2-0x0000000005100000-0x00000000059EB000-memory.dmp	family_glupteba
behavioral2/memory/4888-3-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4888-9-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4888-51-0x0000000005100000-0x00000000059EB000-memory.dmp	family_glupteba
behavioral2/memory/4888-52-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4888-59-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4672-62-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4672-91-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4672-138-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/4672-143-0x0000000000400000-0x0000000002ED6000-memory.dmp	family_glupteba
behavioral2/memory/3012-197-0x0000000000400000-0x0000000002ED6000-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
4748	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	csrss.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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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 5 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

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	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
File created	C:\Windows\rss\csrss.exe	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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
3704	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.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,-252 = "Dateline Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	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\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
408	powershell.exe
408	powershell.exe
408	powershell.exe
4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4640	powershell.exe
4640	powershell.exe
4640	powershell.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
3432	powershell.exe
3432	powershell.exe
3432	powershell.exe
5100	powershell.exe
5100	powershell.exe
5100	powershell.exe
2616	powershell.exe
2616	powershell.exe
4692	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	408	powershell.exe
Token: SeDebugPrivilege	4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Token: SeImpersonatePrivilege	4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
Token: SeDebugPrivilege	4640	powershell.exe
Token: SeDebugPrivilege	3432	powershell.exe
Token: SeDebugPrivilege	5100	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	4692	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 408	4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	98
PID 4888 wrote to memory of 408	4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	98
PID 4888 wrote to memory of 408	4888	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	98
PID 4672 wrote to memory of 4640	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	104
PID 4672 wrote to memory of 4640	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	104
PID 4672 wrote to memory of 4640	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	104
PID 4672 wrote to memory of 2900	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	106
PID 4672 wrote to memory of 2900	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	106
PID 2900 wrote to memory of 4748	2900	cmd.exe	108
PID 2900 wrote to memory of 4748	2900	cmd.exe	108
PID 4672 wrote to memory of 3432	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	109
PID 4672 wrote to memory of 3432	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	109
PID 4672 wrote to memory of 3432	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	109
PID 4672 wrote to memory of 5100	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	111
PID 4672 wrote to memory of 5100	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	111
PID 4672 wrote to memory of 5100	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	111
PID 4672 wrote to memory of 3012	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	113
PID 4672 wrote to memory of 3012	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	113
PID 4672 wrote to memory of 3012	4672	f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe	113
PID 3012 wrote to memory of 2616	3012	csrss.exe	114
PID 3012 wrote to memory of 2616	3012	csrss.exe	114
PID 3012 wrote to memory of 2616	3012	csrss.exe	114
PID 3012 wrote to memory of 4692	3012	csrss.exe	120
PID 3012 wrote to memory of 4692	3012	csrss.exe	120
PID 3012 wrote to memory of 4692	3012	csrss.exe	120

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\f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
"C:\Users\Admin\AppData\Local\Temp\f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:408
- C:\Users\Admin\AppData\Local\Temp\f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.exe
  "C:\Users\Admin\AppData\Local\Temp\f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1.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:4672
- - 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:4640
- - 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:2900
  - - 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:4748
- - 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:3432
- - 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:5100
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3012
  - - 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:2616
  - - 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:3704
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4828
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4692
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:5100

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 --mojo-platform-channel-handle=4340 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:4932

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yhzej3ux.bg3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
afc2b03ecb8991ca301a6d8d6a8d8074

SHA1
2f985f3cc62e619ad6dccb9347cadf10bc735c99

SHA256
d26edf165d010f1b783e4f32845095cde6f8c84fe7bd2d7952a06db431d4ff78

SHA512
9a0901331ad64d29a9240a2722850f58f4f0b409dd80620127ebd9e7098dd582eb90a77b077db125b52c6eb77ee77525444ae2f24fe81e024bd8f924a433247e

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
5cf87f0c3eceb06c396867cb5b9c517f

SHA1
9b1813d89991c64a81cffcae952983f09c6f6f66

SHA256
43e65fae8e397101cd434470dc98c0445f55391cdb8167bffa5d3546d9592999

SHA512
ef56c9247e121f8784e10fffb6d8b88e08ce0f634da784a1fe30254ac171ddf2a003e5f1a768d15c0bb26d475afaa3ef2bac213b89f7e4ddc2406347765678e4

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
d5243a8b64e8f09f6f1935f28bac6bbb

SHA1
4d25eeca9e323985d6c02eada817af2bca6809e0

SHA256
562d625bc6620b6f216761702a5ec9664ffab63dabe3b9fb39eb22c9dcc7bf12

SHA512
e7a774c832fc2465f103ba32f4f8cb17616772602e77d45e1f1123b98919e74d766547759e5fdcede222c3be7dbe2909582ce76564639772fa73499fe7a99771

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
9492f8655cfcd3333c2ca3c0b25590ce

SHA1
65563c52b564e10651d59c68254fc0a209484241

SHA256
7dea854d695e6088a747742dc40a29b6b11b559f5735248b3739b2b13a3f78a3

SHA512
e6a194fbe297cd3ca25c6751daff1ede61230ea0da58460e8bf13d03fccbc9d54bc97fcb8fddb765c28150ab3ad93353b3c6db7bcf61c25e95bd84e72f27e0e6

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
20ea7e9161b09b6de216427520c4c20d

SHA1
81398efc975456fb81cfd05e9e9e39e35cbeab38

SHA256
01d31574bf25c927bc5a0abe9932509cae5231997d9ee6dddadd119c7486c649

SHA512
ed6f7725bb678a84a9b3006d4a8dc5ba62fe6b7bd625b840f4fcfd9d6629853a15af0bb6968252ad42f58d13fa5dd146749b1af5208b305fdc6db831587fa3af

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
64205290b5d5fb08308f23ecd621e401

SHA1
f89e93cbad277071230f37909b6c93393aa53d67

SHA256
f90afa4d4b5033eab5c2d92ae26f7ae12bb705d5f19fb54b45efd495f080f6b1

SHA512
1127ffeafedc28563fca9b9719b77bd201c075cacf302c37a302c15582635deb1e092857090caba577432d3e1d3fd3187ddbe9c08771e1932952179845e1263a

Download Submit
memory/408-57-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/408-7-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

Filesize
64KB

Download
memory/408-4-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/408-12-0x0000000006220000-0x0000000006286000-memory.dmp

Filesize
408KB

Download
memory/408-10-0x00000000058F0000-0x0000000005912000-memory.dmp

Filesize
136KB

Download
memory/408-18-0x00000000062D0000-0x0000000006624000-memory.dmp

Filesize
3.3MB

Download
memory/408-23-0x0000000006990000-0x00000000069AE000-memory.dmp

Filesize
120KB

Download
memory/408-24-0x00000000069C0000-0x0000000006A0C000-memory.dmp

Filesize
304KB

Download
memory/408-25-0x0000000006E50000-0x0000000006E94000-memory.dmp

Filesize
272KB

Download
memory/408-26-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

Filesize
64KB

Download
memory/408-27-0x0000000007C30000-0x0000000007CA6000-memory.dmp

Filesize
472KB

Download
memory/408-28-0x0000000008330000-0x00000000089AA000-memory.dmp

Filesize
6.5MB

Download
memory/408-29-0x0000000007CD0000-0x0000000007CEA000-memory.dmp

Filesize
104KB

Download
memory/408-31-0x0000000007E80000-0x0000000007EB2000-memory.dmp

Filesize
200KB

Download
memory/408-6-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

Filesize
64KB

Download
memory/408-33-0x000000007FC00000-0x000000007FC10000-memory.dmp

Filesize
64KB

Download
memory/408-32-0x00000000708A0000-0x00000000708EC000-memory.dmp

Filesize
304KB

Download
memory/408-34-0x0000000070C90000-0x0000000070FE4000-memory.dmp

Filesize
3.3MB

Download
memory/408-44-0x0000000007E60000-0x0000000007E7E000-memory.dmp

Filesize
120KB

Download
memory/408-45-0x0000000007EC0000-0x0000000007F63000-memory.dmp

Filesize
652KB

Download
memory/408-46-0x0000000007FD0000-0x0000000007FDA000-memory.dmp

Filesize
40KB

Download
memory/408-47-0x0000000008090000-0x0000000008126000-memory.dmp

Filesize
600KB

Download
memory/408-48-0x0000000007FF0000-0x0000000008001000-memory.dmp

Filesize
68KB

Download
memory/408-49-0x0000000008030000-0x000000000803E000-memory.dmp

Filesize
56KB

Download
memory/408-50-0x0000000008040000-0x0000000008054000-memory.dmp

Filesize
80KB

Download
memory/408-5-0x0000000003360000-0x0000000003396000-memory.dmp

Filesize
216KB

Download
memory/408-53-0x0000000008130000-0x000000000814A000-memory.dmp

Filesize
104KB

Download
memory/408-54-0x0000000008070000-0x0000000008078000-memory.dmp

Filesize
32KB

Download
memory/408-8-0x0000000005B80000-0x00000000061A8000-memory.dmp

Filesize
6.2MB

Download
memory/408-11-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/2616-159-0x0000000006420000-0x0000000006774000-memory.dmp

Filesize
3.3MB

Download
memory/2616-161-0x00000000708A0000-0x00000000708EC000-memory.dmp

Filesize
304KB

Download
memory/2616-162-0x0000000070A20000-0x0000000070D74000-memory.dmp

Filesize
3.3MB

Download
memory/3012-197-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/3432-104-0x0000000070C70000-0x0000000070FC4000-memory.dmp

Filesize
3.3MB

Download
memory/3432-103-0x00000000708A0000-0x00000000708EC000-memory.dmp

Filesize
304KB

Download
memory/3432-101-0x0000000006000000-0x0000000006354000-memory.dmp

Filesize
3.3MB

Download
memory/4640-74-0x0000000071020000-0x0000000071374000-memory.dmp

Filesize
3.3MB

Download
memory/4640-68-0x0000000005800000-0x0000000005B54000-memory.dmp

Filesize
3.3MB

Download
memory/4640-86-0x00000000073A0000-0x00000000073B4000-memory.dmp

Filesize
80KB

Download
memory/4640-85-0x0000000007350000-0x0000000007361000-memory.dmp

Filesize
68KB

Download
memory/4640-73-0x00000000708A0000-0x00000000708EC000-memory.dmp

Filesize
304KB

Download
memory/4640-84-0x0000000007040000-0x00000000070E3000-memory.dmp

Filesize
652KB

Download
memory/4672-138-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4672-62-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4672-143-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4672-91-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4692-179-0x0000000006320000-0x0000000006674000-memory.dmp

Filesize
3.3MB

Download
memory/4692-200-0x00000000067A0000-0x00000000067B4000-memory.dmp

Filesize
80KB

Download
memory/4692-199-0x0000000007F10000-0x0000000007F21000-memory.dmp

Filesize
68KB

Download
memory/4692-198-0x0000000007C20000-0x0000000007CC3000-memory.dmp

Filesize
652KB

Download
memory/4692-187-0x0000000070F50000-0x00000000712A4000-memory.dmp

Filesize
3.3MB

Download
memory/4692-186-0x00000000707C0000-0x000000007080C000-memory.dmp

Filesize
304KB

Download
memory/4692-185-0x0000000006D70000-0x0000000006DBC000-memory.dmp

Filesize
304KB

Download
memory/4888-9-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4888-1-0x0000000003550000-0x0000000003955000-memory.dmp

Filesize
4.0MB

Download
memory/4888-3-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4888-30-0x0000000003550000-0x0000000003955000-memory.dmp

Filesize
4.0MB

Download
memory/4888-52-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4888-59-0x0000000000400000-0x0000000002ED6000-memory.dmp

Filesize
42.8MB

Download
memory/4888-51-0x0000000005100000-0x00000000059EB000-memory.dmp

Filesize
8.9MB

Download
memory/4888-2-0x0000000005100000-0x00000000059EB000-memory.dmp

Filesize
8.9MB

Download
memory/5100-120-0x0000000005A30000-0x0000000005D84000-memory.dmp

Filesize
3.3MB

Download
memory/5100-127-0x0000000071000000-0x0000000071354000-memory.dmp

Filesize
3.3MB

Download
memory/5100-126-0x00000000708A0000-0x00000000708EC000-memory.dmp

Filesize
304KB

Download
memory/5100-211-0x0000000005E20000-0x0000000006174000-memory.dmp

Filesize
3.3MB

Download