aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
24/09/2026, 23:46

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General

Target
jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe
Size 44KB
Sample260924-3sshsszscx
SHA256 aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b
MD5 1c0dec79ddf87d8f80d1bd46f934e512
SHA1 940fdac296925c6f034a3c2a391394325a00c887
SHA512 897a4c5e5bc17107824fc923804bbc6ae3868d95caa94aa641c817a50e6ed9bcd9d67f5718374f6f07bd42dd216751d7642b663d4c01d90261fd81de82136734
SSDEEP 384:zTZLItJUvMg6EOqNAWo0vkdJhnJYMF8zpct5Ooi:hvMg6EhNa5PFCat5Ox
TLSH
T1A213D65F6A218CB3C39A02F525C965236FEB2C742222DBC6DF635AD86D30DE01D3A543
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery execution persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
1100	tennfsk.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\tennfs.dll	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe
File created	C:\Windows\SysWOW64\tennfsk.exe	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe
File opened for modification	C:\Windows\SysWOW64\tennfsk.exe	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3044	cmd.exe

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	tennfsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 1100	4824	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe	87
PID 4824 wrote to memory of 3044	4824	jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\tennfsk.exe
  C:\Windows\system32\tennfsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1100
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3044

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b.exe.bat
Size 274B
SHA256 3990d3a2734563fc0228718435dbe0a5b6e8f4456f83a913131b231d79bf09ef
MD5 1828ee62569c00439b83c9fb4de7e8e2
SHA1 75623fcf5dc1e792a5a20e7f3c8ae50fe2504e54
SHA512 8adfbc38b72cbf3dede1efc6ade687217ceb0eaaa7d91ada1e1f0021ae1586033f7676ef822e8da2313aa877e9bd5d459a854402fe8bd184707ae056f6dc5f55
TLSH
T1FFD02B304316E5BB05D1989F09F817DA81B6079359E79E1687D688956381308FAC7745
MD5 SHA1 SHA512 TLSH

Submit Download

tennfsk.exe

Path C:\Windows\SysWOW64\tennfsk.exe
Size 44KB
SHA256 aa52476c849cf8dc346a4fc2f2dc421a9b2f218264f2cc010198a255790c455b
MD5 1c0dec79ddf87d8f80d1bd46f934e512
SHA1 940fdac296925c6f034a3c2a391394325a00c887
SHA512 897a4c5e5bc17107824fc923804bbc6ae3868d95caa94aa641c817a50e6ed9bcd9d67f5718374f6f07bd42dd216751d7642b663d4c01d90261fd81de82136734
SSDEEP 384:zTZLItJUvMg6EOqNAWo0vkdJhnJYMF8zpct5Ooi:hvMg6EhNa5PFCat5Ox
TLSH
T1A213D65F6A218CB3C39A02F525C965236FEB2C742222DBC6DF635AD86D30DE01D3A543
MD5 SHA1 SHA512 SSDEEP TLSH