81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2

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, 04:47

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General

Target
jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe
Size 48KB
Sample260924-fe24raeb86
SHA256 81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2
MD5 5d82ea1ede94d727a5d0054637f256c9
SHA1 64f48e069fc62ab186648c1111d5f30ec85939c2
SHA512 2b741641aa81d5915006bd0fb23eac3a46ce9cc2c3be971e800d6322fa1b37d9cf676251f55887e80db36e886d9681f05e35eea14cf5c3a644d5d3718ef9636f
SSDEEP 384:IyfSdvKtvYSkhB3nDlZwuOIEuHtPsY2I4YQsJixGAXMepct5mA2Uok:IymCYSYB3nD7quNPsA4YNJiNXzat5ml
TLSH
T176235C47611998F2CADD023534E9711B5FBA2D3086A600A3EFA72F495DB10BBF524C2B
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
3540	biroask.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\biroas.dll	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe
File created	C:\Windows\SysWOW64\biroask.exe	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.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
1312	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_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biroask.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5564	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe
5564	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5564 wrote to memory of 3540	5564	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe	89
PID 5564 wrote to memory of 1312	5564	jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5564
- C:\Windows\SysWOW64\biroask.exe
  C:\Windows\system32\biroask.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3540
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1312

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_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2.exe.bat
Size 274B
SHA256 01b2967b78b8f6b55837ef925c627755551306c0c0ceb0264da38629eb1c9351
MD5 6669bb558740f4f0e82b4e4154b90a5c
SHA1 00768345f10dcbea34c45909ec32ee9f6c56bb46
SHA512 1b4a47ac1f0a03b9e0ca570ea40168953708018056cdd7e79addc8d6bba65d1d957aba4bf1ae881c016d772a021e947bdab5435fdefca08c87f9170bb7affceb
TLSH
T122D02BC0DF158AC04852D72B09380105C4205FB422893F1AD63145D47243038F2FBB42
MD5 SHA1 SHA512 TLSH

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biroask.exe

Path C:\Windows\SysWOW64\biroask.exe
Size 48KB
SHA256 81a67b2241e58de2733a10ae98d85f6b704a811898b23162d1ab4640313e10f2
MD5 5d82ea1ede94d727a5d0054637f256c9
SHA1 64f48e069fc62ab186648c1111d5f30ec85939c2
SHA512 2b741641aa81d5915006bd0fb23eac3a46ce9cc2c3be971e800d6322fa1b37d9cf676251f55887e80db36e886d9681f05e35eea14cf5c3a644d5d3718ef9636f
SSDEEP 384:IyfSdvKtvYSkhB3nDlZwuOIEuHtPsY2I4YQsJixGAXMepct5mA2Uok:IymCYSYB3nD7quNPsA4YNJiNXzat5ml
TLSH
T176235C47611998F2CADD023534E9711B5FBA2D3086A600A3EFA72F495DB10BBF524C2B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download