66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d

Reason

Remote task has failed: Machine shutdown

General

Target

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
Size

96KB
MD5

5b17b33e215846830ad09ec3d71287a1
SHA1

f4442ff97904eea16df41b24897df7b363d89bb8
SHA256

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d
SHA512

aab7c6b777f23fb4a5412af4b4b25bb45421b2f1bea3aece16d22597dd09743d35d9627484c668d359df6147f2b75bb8fd6e35317e16197ef3cb7940dfcda6f8

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3992-116-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/3992-120-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\226524335 = "C:\\Users\\Admin\\226524335.exe"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe

description	pid	process	target process
PID 3164 set thread context of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

wlrmdr.exe

pid process

3544 wlrmdr.exe
3544 wlrmdr.exe

pid	process
3544	wlrmdr.exe
3544	wlrmdr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exeshutdown.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
Token: SeShutdownPrivilege	1296	shutdown.exe
Token: SeRemoteShutdownPrivilege	1296	shutdown.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exewlrmdr.exeLogonUI.exe

pid process

3164 66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
3544 wlrmdr.exe
3920 LogonUI.exe

pid	process
3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
3544	wlrmdr.exe
3920	LogonUI.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.execmd.exe

description	pid	process	target process
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3164 wrote to memory of 3992	3164	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
PID 3992 wrote to memory of 708	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe
PID 3992 wrote to memory of 708	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe
PID 3992 wrote to memory of 708	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe
PID 708 wrote to memory of 2884	708	cmd.exe	reg.exe
PID 708 wrote to memory of 2884	708	cmd.exe	reg.exe
PID 708 wrote to memory of 2884	708	cmd.exe	reg.exe
PID 3992 wrote to memory of 1296	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	shutdown.exe
PID 3992 wrote to memory of 1296	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	shutdown.exe
PID 3992 wrote to memory of 1296	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	shutdown.exe
PID 3992 wrote to memory of 2768	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe
PID 3992 wrote to memory of 2768	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe
PID 3992 wrote to memory of 2768	3992	66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
"C:\Users\Admin\AppData\Local\Temp\66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3164

C:\Users\Admin\AppData\Local\Temp\66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe
"C:\Users\Admin\AppData\Local\Temp\66b096816cb209f540e2974988c0d7b82487c3e52041a2d44cbe160c30dbde4d.sample.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3992

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 226524335 /t REG_SZ /d "%userprofile%\226524335.exe" /f
3⤵
- Suspicious use of WriteProcessMemory
PID:708

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 226524335 /t REG_SZ /d "C:\Users\Admin\226524335.exe" /f
4⤵
- Adds Run key to start application
PID:2884

C:\Windows\SysWOW64\shutdown.exe
"C:\Windows\System32\shutdown.exe" /r /f /t 3
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1296

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\66B096~1.EXE > nul
3⤵
PID:2768

C:\Windows\system32\wlrmdr.exe
-s -1 -f 2 -t You're about to be signed out -m Windows will shut down in less than a minute. -a 3
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3544

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3acd855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3920

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/708-118-0x0000000000000000-mapping.dmp

Download
memory/1296-121-0x0000000000000000-mapping.dmp

Download
memory/2768-122-0x0000000000000000-mapping.dmp

Download
memory/2884-119-0x0000000000000000-mapping.dmp

Download
memory/3992-116-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3992-117-0x000000000040F150-mapping.dmp

Download
memory/3992-120-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads