9a30b40ec88c2293890119298a7209864ce23e68ccc3ed2952bc1fd19add12af

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/10/2026, 22:51

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General

Target
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Size 31KB
Sample261013-2s8dksss3k
SHA256 9a30b40ec88c2293890119298a7209864ce23e68ccc3ed2952bc1fd19add12af
MD5 100932eaeeb1267acac6eaa0a03cab72
SHA1 3ea1362bad226334c33617c069b007f242be35a4
SHA512 342b85daef7c31e09e489f6fa343cf9785999f879694d9718f410ca0084085a2d94720ca72753b7c0781e246c811ab9d07613165500aa7b0dc3d3ab021c353d0
SSDEEP 768:sPNtRMf51IZilfvP55gXoQOKVBJCRxz3:KRMIZiZvP5+oFK/sD
TLSH
T11DE29E8EC245421CE1A006767263BE7AE795D720622309936F9CB60740785F3E32FAFD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

bootkit defense_evasion discovery persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
4652	wuaucldt.exe
696	wuaucldt.exe
872	wuaucldt.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\wuaucldt = "c:\\windows\\system32\\wuaucldt.exe"	wuaucldt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuaucldt = "c:\\users\\admin\\wuaucldt.exe"	wuaucldt.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	wuaucldt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 696 set thread context of 4192	696	wuaucldt.exe	90

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 4652	4052	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	88
PID 4652 wrote to memory of 696	4652	wuaucldt.exe	89
PID 696 wrote to memory of 4192	696	wuaucldt.exe	90
PID 696 wrote to memory of 4192	696	wuaucldt.exe	90
PID 4052 wrote to memory of 4036	4052	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	94
PID 4652 wrote to memory of 972	4652	wuaucldt.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- \??\c:\windows\SysWOW64\wuaucldt.exe
  c:\windows\system32\wuaucldt.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4652
- - \??\c:\users\admin\wuaucldt.exe
    c:\users\admin\wuaucldt.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:696
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      PID:4192
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del c:\windows\syswow64\wuaucldt.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:972
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del c:\users\admin\appdata\local\temp\JAFFAC~1.EXE
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4036

\??\c:\users\admin\wuaucldt.exe
c:\users\admin\wuaucldt.exe
1⤵
- Executes dropped EXE
PID:872

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

wuaucldt.exe

Path C:\Windows\SysWOW64\wuaucldt.exe
Size 31KB
SHA256 9a30b40ec88c2293890119298a7209864ce23e68ccc3ed2952bc1fd19add12af
MD5 100932eaeeb1267acac6eaa0a03cab72
SHA1 3ea1362bad226334c33617c069b007f242be35a4
SHA512 342b85daef7c31e09e489f6fa343cf9785999f879694d9718f410ca0084085a2d94720ca72753b7c0781e246c811ab9d07613165500aa7b0dc3d3ab021c353d0
SSDEEP 768:sPNtRMf51IZilfvP55gXoQOKVBJCRxz3:KRMIZiZvP5+oFK/sD
TLSH
T11DE29E8EC245421CE1A006767263BE7AE795D720622309936F9CB60740785F3E32FAFD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/696-19-0x0000000070000000-0x000000007000B000-memory.dmp

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memory/872-56-0x0000000070000000-0x000000007000B000-memory.dmp

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memory/872-59-0x0000000070000000-0x000000007000B000-memory.dmp

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memory/872-60-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4052-1-0x0000000009000000-0x0000000009009000-memory.dmp

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memory/4052-2-0x0000000009000000-0x0000000009009000-memory.dmp

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memory/4052-3-0x0000000070000000-0x000000007000B000-memory.dmp

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memory/4052-65-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4052-0-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4192-22-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4192-26-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4192-23-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4192-27-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4192-24-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4192-21-0x0000000000340000-0x0000000000349000-memory.dmp

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memory/4652-13-0x0000000070000000-0x000000007000B000-memory.dmp

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memory/4652-66-0x0000000000400000-0x0000000000412000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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