a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1

Analysis

max time kernel
150s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/09/2026, 11:12

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General

Target
jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe
Size 44KB
Sample260924-navswacb76
SHA256 a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1
MD5 64a08963ca2ddf17eb8a523eb1efd714
SHA1 c932857f85a6055cb294b26b2d8dc5c5a812630c
SHA512 8410515115c7868e47acf42811d1ae130012281375e10be1924a40c081296712a49a16c45f970ff880a5ba8462f0a8869d8e6282290610898d5951a23a608b87
SSDEEP 384:Qa+muiiADj30dnLbhptyim9KkYSXSapct5Q:QVm1VDj30n+9PYSXVat5Q
TLSH
T1A91329876F0588B3D2E841BD245A472B9FB95D31136A5CA7C7B32AC99D701E08E3134B
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
3124	zfashlk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zfashl.dll	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe
File created	C:\Windows\SysWOW64\zfashlk.exe	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.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
6068	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	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zfashlk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5588	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe
5588	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5588 wrote to memory of 3124	5588	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe	89
PID 5588 wrote to memory of 6068	5588	jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5588
- C:\Windows\SysWOW64\zfashlk.exe
  C:\Windows\system32\zfashlk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3124
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:6068

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

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Downloads

jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1.exe.bat
Size 274B
SHA256 bd5efc532a3776495f5b97eefbb2e01a621d0ace15e401081592219eaa76a9ef
MD5 eebacc0fff5d64dab0615ee9bd2a2ccf
SHA1 c6b6a5e49c5e37a936c9783de78e249a220e8273
SHA512 50bfe1ab357bb8cb9e3c4fbbf4ea0870809fd7e05892c17f1827425a60dae3539d78ae9e9dde1c25262db70aec3f0a227d1be19575a0785d26bffaf58f7486b9
TLSH
T10BD02B54A672846558D4FCAF3125C5CD432159E4968C6E0103A086E8029101CB6E3B00
MD5 SHA1 SHA512 TLSH

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zfashlk.exe

Path C:\Windows\SysWOW64\zfashlk.exe
Size 44KB
SHA256 a9893571f0f981b1c0a8cb4263ddca1694e48440028df4e579011c124a1b34f1
MD5 64a08963ca2ddf17eb8a523eb1efd714
SHA1 c932857f85a6055cb294b26b2d8dc5c5a812630c
SHA512 8410515115c7868e47acf42811d1ae130012281375e10be1924a40c081296712a49a16c45f970ff880a5ba8462f0a8869d8e6282290610898d5951a23a608b87
SSDEEP 384:Qa+muiiADj30dnLbhptyim9KkYSXSapct5Q:QVm1VDj30n+9PYSXVat5Q
TLSH
T1A91329876F0588B3D2E841BD245A472B9FB95D31136A5CA7C7B32AC99D701E08E3134B
MD5 SHA1 SHA512 SSDEEP TLSH

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