a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd

Analysis

max time kernel
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/09/2026, 18:34

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General

Target
jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
Size 52KB
Sample260925-w75ncatfkb
SHA256 a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd
MD5 add52a307ac5e0334dd8db7e1f557c24
SHA1 e84dd74a6f30593746d7b37d27a9155d9b8cf12e
SHA512 2e857b815c1a1fa87562b022d690ae10d77e5139457f8c6a213a725b04bdcf18e1ae4584c6889b967edce9e35f121055f39219665ce7aa22b3d5ee3d3ceb0ead
SSDEEP 768:HhHZkBkEmpOC7O6wz4XKYLLelY4gRq7YmbuCLfTwHMGpxe:/kBNmpOCsyKPivRq7YmbuCPwHMGpx
TLSH
T1A733E113AEAC4E33EDD900760D1B5120F97A1616477E60446FDF14EBB8B7AD38D2620B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x001000000001c4d1-3.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4924	rundll32.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\ins = "No1.dll,"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SfcDisable = "4294967197"	rundll32.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Bansme.dll	jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
File created	C:\Windows\SysWOW64\No1.dll	jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
File created	C:\Windows\SysWOW64\Sync.log	jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x001000000001c4d1-3.dat	upx
behavioral2/memory/4924-5-0x0000000010000000-0x0000000010106000-memory.dmp	upx
behavioral2/memory/4924-6-0x0000000010000000-0x0000000010106000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3400	4924	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 3 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	sfc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 4924	4912	jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe	89
PID 4924 wrote to memory of 4848	4924	rundll32.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\system32\rundll32.exe" No1.dll,init C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a6eeb4f3bd75f01ceed9910634eba0267b625b03e808fbace6b5a0d7eeea4edd.exe
  2⤵
  - Loads dropped DLL
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4924
- - C:\Windows\SysWOW64\sfc.exe
    "C:\Windows\system32\sfc.exe" /REVERT
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 1240
    3⤵
    - Program crash
    PID:3400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4924 -ip 4924
1⤵
PID:4260

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

No1.dll

Path C:\Windows\SysWOW64\No1.dll
Size 29KB
SHA256 f1f2eebf2d781c3097ee390acdd368c9566d2b1caefacc5af7fada16b0396c4c
MD5 9d2902edf25437b80c824555d651ae3b
SHA1 ec54536d83e3494de6efe7baf725968e88dedd7d
SHA512 01abf7c0c08244bb60c2c306a521f2abd92dfc4350d1ab187488b849d02540ab39c4103bc8f0dcbe267d4c894decd2ef08cb2ba90ad8c466248a316829805ec4
SSDEEP 768:WkBkEmpOC7O6wz4XKYLLelY4gRq7YmbuCLfTwHMGp:WkBNmpOCsyKPivRq7YmbuCPwHMGp
TLSH
T1F2D2E1126D3D1F2AEDEA007A951F1134F83626095B7F2440FEED15A378F7AD28D06627
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4924-5-0x0000000010000000-0x0000000010106000-memory.dmp

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memory/4924-6-0x0000000010000000-0x0000000010106000-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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Downloads