22e2f0cb23c47b359f8eca3872596e6d4c67033568bba09ac0043bf1f5b1a314

Analysis

max time kernel
23s
max time network
25s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
11/07/2024, 08:59

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Reason

Machine shutdown

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General

Target

k1XJSSO.exe
Size

90KB
MD5

1c7f572b36e436360fcbf142aad58689
SHA1

bf60b1168ad8aa921501fa37b3a66edbc6ef5936
SHA256

22e2f0cb23c47b359f8eca3872596e6d4c67033568bba09ac0043bf1f5b1a314
SHA512

9596c7c534ede05082bd80245116df7ba0f4d0d88465ebd3d83579d7dbfdddf72ecad01ea19c1795fda089aeb070a58adf8883f5d7a72bb9144edf0930323a2a
SSDEEP

1536:H7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfvwoOl:b7DhdC6kzWypvaQ0FxyNTBfvo

Score

1^/10

Malware Config

Signatures

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
412	timeout.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2700	tasklist.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "193"	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\Themes\History\AutoColor = "0"	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\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	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\DWM\AccentColor = "4292311040"	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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	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\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3488	shutdown.exe
Token: SeRemoteShutdownPrivilege	3488	shutdown.exe
Token: SeDebugPrivilege	2700	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5016	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 4092	3260	k1XJSSO.exe	84
PID 3260 wrote to memory of 4092	3260	k1XJSSO.exe	84
PID 4092 wrote to memory of 412	4092	cmd.exe	87
PID 4092 wrote to memory of 412	4092	cmd.exe	87
PID 4092 wrote to memory of 3488	4092	cmd.exe	90
PID 4092 wrote to memory of 3488	4092	cmd.exe	90
PID 4092 wrote to memory of 2700	4092	cmd.exe	92
PID 4092 wrote to memory of 2700	4092	cmd.exe	92
PID 4092 wrote to memory of 2004	4092	cmd.exe	93
PID 4092 wrote to memory of 2004	4092	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\k1XJSSO.exe
"C:\Users\Admin\AppData\Local\Temp\k1XJSSO.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\AA2A.tmp\AA2B.tmp\AA2C.bat C:\Users\Admin\AppData\Local\Temp\k1XJSSO.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\Windows\system32\timeout.exe
    timeout /t 20
    3⤵
    - Delays execution with timeout.exe
    PID:412
- - C:\Windows\system32\shutdown.exe
    shutdown /s /t 0 /f
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3488
- - C:\Windows\system32\tasklist.exe
    tasklist /FI "WINDOWTITLE eq Recursive File Renamer and Fake Ransomware"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2700
- - C:\Windows\system32\find.exe
    find /I /N "cmd.exe"
    3⤵
    PID:2004

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39b0855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\AA2A.tmp\AA2B.tmp\AA2C.bat

Filesize
1KB

MD5
b6e1919a9ca970827428552753afb18c

SHA1
1838733ac35d669133de530f4a007b3e07bf52ad

SHA256
a5e9d19b518f9ff6c1b7921cc1d36af8aef7ca7c14c996a11a8fc337f9c277da

SHA512
e8ca15278f02086594b1ad134bbd09a7f101bda9f908f028e4585382a6d4ae04e202f3773fec8a88f8fd7f66b45f21b462e4b7e053b2301145c84f0cee64c26b

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