glupteba | f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f

Analysis

max time kernel
31s
max time network
28s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
11-05-2024 09:12

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General

Target

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Size

4.1MB
MD5

e59afc220dbb8577416508ad212bbd1b
SHA1

a3ba692dbe801791159f783bed349706d8dd5dc7
SHA256

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f
SHA512

d4822ff9148a588f12d5aa4be460384b1a5b24530ebde445bd6daffc34d99e32c52d7dd18f302ead63943582042bd2941aa4f1f80f0aed9842983a7625791262
SSDEEP

98304:wErTbmYqgZ1XudKeC70JrifsEkbyxLCxltfr4Ppsv6xaCIJ:DD1Z1UwAUfrk2xOxPr4PpsvyaCIJ

Score

10^/10

glupteba discovery dropper evasion execution loader persistence

Malware Config

Signatures

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

Glupteba payload 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1032-2-0x0000000004AF0000-0x00000000053DB000-memory.dmp	family_glupteba
behavioral2/memory/1032-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1032-51-0x0000000000400000-0x000000000295D000-memory.dmp	family_glupteba
behavioral2/memory/1032-93-0x0000000004AF0000-0x00000000053DB000-memory.dmp	family_glupteba
behavioral2/memory/3012-114-0x0000000000400000-0x000000000295D000-memory.dmp	family_glupteba
behavioral2/memory/1032-122-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3012-178-0x0000000000400000-0x000000000295D000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2420 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

4692 csrss.exe

pid	process
2420	netsh.exe

pid	process
4692	csrss.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.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 7 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	process
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
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

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

Processes:

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

Drops file in Windows directory 2 IoCs

Processes:

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

description	ioc	process
File opened for modification	C:\Windows\rss	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
File created	C:\Windows\rss\csrss.exe	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid process

1916 powershell.exe
1208 powershell.exe
4408 powershell.exe
1784 powershell.exe
2584 powershell.exe
3088 powershell.exe
2872 powershell.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4596 2584 WerFault.exe powershell.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

Processes:

schtasks.exe

pid process

4860 schtasks.exe

pid	process
1916	powershell.exe
1208	powershell.exe
4408	powershell.exe
1784	powershell.exe
2584	powershell.exe
3088	powershell.exe
2872	powershell.exe

pid	pid_target	process	target process
4596	2584	WerFault.exe	powershell.exe

pid	process
4860	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.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\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.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,-384 = "Namibia Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.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,-571 = "China Daylight Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.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\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

powershell.exef019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exepowershell.exef019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	process
2584	powershell.exe
2584	powershell.exe
1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3088	powershell.exe
3088	powershell.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
2872	powershell.exe
2872	powershell.exe
1916	powershell.exe
1916	powershell.exe
1208	powershell.exe
1208	powershell.exe
4408	powershell.exe
4408	powershell.exe
1784	powershell.exe
1784	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

powershell.exef019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2584	powershell.exe
Token: SeDebugPrivilege	1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Token: SeImpersonatePrivilege	1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
Token: SeDebugPrivilege	3088	powershell.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	1916	powershell.exe
Token: SeDebugPrivilege	1208	powershell.exe
Token: SeDebugPrivilege	4408	powershell.exe
Token: SeDebugPrivilege	1784	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exef019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.execmd.execsrss.exe

description	pid	process	target process
PID 1032 wrote to memory of 2584	1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 1032 wrote to memory of 2584	1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 1032 wrote to memory of 2584	1032	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 3088	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 3088	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 3088	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 3280	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	cmd.exe
PID 3012 wrote to memory of 3280	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	cmd.exe
PID 3280 wrote to memory of 2420	3280	cmd.exe	netsh.exe
PID 3280 wrote to memory of 2420	3280	cmd.exe	netsh.exe
PID 3012 wrote to memory of 2872	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 2872	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 2872	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 1916	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 1916	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 1916	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	powershell.exe
PID 3012 wrote to memory of 4692	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	csrss.exe
PID 3012 wrote to memory of 4692	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	csrss.exe
PID 3012 wrote to memory of 4692	3012	f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe	csrss.exe
PID 4692 wrote to memory of 1208	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 1208	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 1208	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 4408	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 4408	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 4408	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 1784	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 1784	4692	csrss.exe	powershell.exe
PID 4692 wrote to memory of 1784	4692	csrss.exe	powershell.exe

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\f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
"C:\Users\Admin\AppData\Local\Temp\f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

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:2584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2584 -s 2544
3⤵
- Program crash
PID:4596

C:\Users\Admin\AppData\Local\Temp\f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.exe
"C:\Users\Admin\AppData\Local\Temp\f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f.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:3012

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:3088

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:3280

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:2420

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:2872

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:1916

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4692

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:1208

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:4860

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:2984

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:4408

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:1784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2584 -ip 2584
1⤵
PID:2444

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ya2tokfk.1ub.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
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

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

Filesize
19KB

MD5
326bc5cf5f14ef90ba4fb8e799ab861e

SHA1
0fe4565a4154e4ca64631ed179f740abe1155024

SHA256
e364dd3134197911617b02034bd2eb6884b097037d1095da24779db810f57923

SHA512
39b194f389c5335bbb0d73d1136fdad4ad3fe334a8d7c4ebbbfefcf255afb4430f1ddd2709ed1ced7d5177ea8bec9a2baf95dce7c5a0af0eb0496de89adb9a8b

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

Filesize
19KB

MD5
23991adcd05930d4d09c54d806cb54c0

SHA1
8d44d5d5b7d23919d465cd369e61b2bbb50035ca

SHA256
5c9f5bea17f8d18331b3e615107d3cedfe44fb95b2c851981e8301e56e4eb364

SHA512
812cb020083918f16ee8b7bc847b74c0becbafab299a1717087a45fe47cc0169111830c4291de65358cad6adf971c90299e1f9252849f6f196de3553f0e0f515

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

Filesize
19KB

MD5
06bdd69255fb41d52e8214327f74ba9c

SHA1
ed05273fb7b80a31ced2d5183152d91f45e2071f

SHA256
11e6ac8cb7ab7ea9673313637a6fe26ef278ee0fae391dbc222fe9feee35b832

SHA512
a270af4c59d3a47f3e25b3f13f290274bc71e71e63c67c94ce63bf51e041c29de64ac7a6f3a10f8379b4dc5624da77edb5d2e87c30fcca51b1c010dc5633b6fa

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

Filesize
19KB

MD5
740ef08d2e1918cbc62d9c71ae1e8c8e

SHA1
f76cac9ea06474aedc9ca0391c7fbc8c550077b2

SHA256
472b529870191c2bac5a297d8e079c231367bc5444a1367eabce24878c133da5

SHA512
f076979a80a00d8fa2c6cb8e3400d4fc8d4a13f1dd2c11f9a916cfc85588733de0acb7f627d60d04de34f2c8423198cc1ce218f6856c1b08be67ffe362ddee62

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

Filesize
19KB

MD5
bf22a5d2c2880749f1b19cfa05e8b62b

SHA1
389d50abec9bb84e9a0799cff82b4dc57f97e0d3

SHA256
54e5019cbedd407c28af0349aa8d8a8dc91cd12d4bc4d7f6d3670240a22e859c

SHA512
f3607780cb62203de1a27684b491032fa7e54a191ad6c5a56f61c9b2898435f10009d925f179ee9f1502ec5aaeb3e8455bda65b74759fa883adb43b53c85105e

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

Filesize
4.1MB

MD5
e59afc220dbb8577416508ad212bbd1b

SHA1
a3ba692dbe801791159f783bed349706d8dd5dc7

SHA256
f019eef28845ac4afccffd013f32abeab9bb387786991945aa5c1c4deaca794f

SHA512
d4822ff9148a588f12d5aa4be460384b1a5b24530ebde445bd6daffc34d99e32c52d7dd18f302ead63943582042bd2941aa4f1f80f0aed9842983a7625791262

Download Submit
memory/1032-92-0x00000000046F0000-0x0000000004AEF000-memory.dmp

Filesize
4.0MB

Download
memory/1032-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/1032-93-0x0000000004AF0000-0x00000000053DB000-memory.dmp

Filesize
8.9MB

Download
memory/1032-2-0x0000000004AF0000-0x00000000053DB000-memory.dmp

Filesize
8.9MB

Download
memory/1032-51-0x0000000000400000-0x000000000295D000-memory.dmp

Filesize
37.4MB

Download
memory/1032-122-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/1032-1-0x00000000046F0000-0x0000000004AEF000-memory.dmp

Filesize
4.0MB

Download
memory/1208-132-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/1208-133-0x0000000070520000-0x0000000070877000-memory.dmp

Filesize
3.3MB

Download
memory/1784-176-0x0000000005850000-0x0000000005BA7000-memory.dmp

Filesize
3.3MB

Download
memory/1784-179-0x00000000701F0000-0x000000007023C000-memory.dmp

Filesize
304KB

Download
memory/1784-180-0x0000000070400000-0x0000000070757000-memory.dmp

Filesize
3.3MB

Download
memory/1916-105-0x0000000070450000-0x00000000707A7000-memory.dmp

Filesize
3.3MB

Download
memory/1916-104-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/2584-24-0x0000000006FC0000-0x0000000006FF4000-memory.dmp

Filesize
208KB

Download
memory/2584-8-0x0000000004D00000-0x0000000004D22000-memory.dmp

Filesize
136KB

Download
memory/2584-40-0x0000000007180000-0x000000000718A000-memory.dmp

Filesize
40KB

Download
memory/2584-41-0x0000000074060000-0x0000000074811000-memory.dmp

Filesize
7.7MB

Download
memory/2584-39-0x0000000007140000-0x000000000715A000-memory.dmp

Filesize
104KB

Download
memory/2584-4-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2584-5-0x00000000046F0000-0x0000000004726000-memory.dmp

Filesize
216KB

Download
memory/2584-7-0x0000000004F10000-0x000000000553A000-memory.dmp

Filesize
6.2MB

Download
memory/2584-6-0x0000000074060000-0x0000000074811000-memory.dmp

Filesize
7.7MB

Download
memory/2584-38-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/2584-10-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/2584-11-0x0000000074060000-0x0000000074811000-memory.dmp

Filesize
7.7MB

Download
memory/2584-9-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/2584-20-0x00000000056D0000-0x0000000005A27000-memory.dmp

Filesize
3.3MB

Download
memory/2584-37-0x0000000007020000-0x00000000070C4000-memory.dmp

Filesize
656KB

Download
memory/2584-21-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

Filesize
120KB

Download
memory/2584-36-0x0000000007000000-0x000000000701E000-memory.dmp

Filesize
120KB

Download
memory/2584-22-0x0000000005BD0000-0x0000000005C1C000-memory.dmp

Filesize
304KB

Download
memory/2584-23-0x0000000006110000-0x0000000006156000-memory.dmp

Filesize
280KB

Download
memory/2584-26-0x0000000074060000-0x0000000074811000-memory.dmp

Filesize
7.7MB

Download
memory/2584-27-0x0000000070450000-0x00000000707A7000-memory.dmp

Filesize
3.3MB

Download
memory/2584-25-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/2872-83-0x0000000070520000-0x0000000070877000-memory.dmp

Filesize
3.3MB

Download
memory/2872-82-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/2872-80-0x0000000005E30000-0x0000000006187000-memory.dmp

Filesize
3.3MB

Download
memory/3012-114-0x0000000000400000-0x000000000295D000-memory.dmp

Filesize
37.4MB

Download
memory/3012-178-0x0000000000400000-0x000000000295D000-memory.dmp

Filesize
37.4MB

Download
memory/3088-66-0x00000000072A0000-0x00000000072B5000-memory.dmp

Filesize
84KB

Download
memory/3088-63-0x0000000007320000-0x00000000073B6000-memory.dmp

Filesize
600KB

Download
memory/3088-65-0x0000000007290000-0x000000000729E000-memory.dmp

Filesize
56KB

Download
memory/3088-52-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/3088-64-0x0000000007250000-0x0000000007261000-memory.dmp

Filesize
68KB

Download
memory/3088-67-0x00000000072E0000-0x00000000072FA000-memory.dmp

Filesize
104KB

Download
memory/3088-53-0x0000000070450000-0x00000000707A7000-memory.dmp

Filesize
3.3MB

Download
memory/3088-68-0x0000000007300000-0x0000000007308000-memory.dmp

Filesize
32KB

Download
memory/3088-62-0x0000000006F10000-0x0000000006FB4000-memory.dmp

Filesize
656KB

Download
memory/4408-153-0x0000000005BF0000-0x0000000005C3C000-memory.dmp

Filesize
304KB

Download
memory/4408-166-0x00000000059E0000-0x00000000059F5000-memory.dmp

Filesize
84KB

Download
memory/4408-165-0x0000000007170000-0x0000000007181000-memory.dmp

Filesize
68KB

Download
memory/4408-164-0x0000000006E20000-0x0000000006EC4000-memory.dmp

Filesize
656KB

Download
memory/4408-154-0x00000000701F0000-0x000000007023C000-memory.dmp

Filesize
304KB

Download
memory/4408-155-0x0000000070440000-0x0000000070797000-memory.dmp

Filesize
3.3MB

Download
memory/4408-151-0x0000000005660000-0x00000000059B7000-memory.dmp

Filesize
3.3MB

Download