1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9

Analysis

max time kernel
150s
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, 04:32

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General

Target
jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe
Size 48KB
Sample260924-e5y94syfmb
SHA256 1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9
MD5 4f6e292f801bf5da09607dd4ee912a12
SHA1 4eafb636692408c12473da365841bc5f026b6770
SHA512 7257fc442eb64d3222f72d9c83e17c324f2897d3bf7aeb1bef9d85c07201aefb5fc74a390c4aa80429b0541e2457ffe50c5d5f3b08678bd574aa5ab5f49f74ab
SSDEEP 768:WU1LRP0gVDqJn75dLqDKCC0u4X+Zat5mS0:WUpOumJnh0uUy
TLSH
T117235B4B651598B1CEE9023434D926179FB92E304BA740E3EFF32FC5ADB11A7E42052B
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
4064	biroask.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\biroask.exe	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe
File created	C:\Windows\SysWOW64\biroas.dll	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.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
2576	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_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.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
1908	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe
1908	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 4064	1908	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe	89
PID 1908 wrote to memory of 2576	1908	jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\biroask.exe
  C:\Windows\system32\biroask.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4064
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2576

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_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9.exe.bat
Size 274B
SHA256 bfba01ed2b6f3f4ca4e4ce69a202488e56fde432698240b67f723d7b6d163614
MD5 a8b802c3ee7089c00e382fcaf6580123
SHA1 cb2330d3d5804db4307110ca52b49794803e009a
SHA512 f2aa7feed1f116f8fbdb56ec6a59b87fd2f4e533c5636141d8a8dd2a87d33123ed15167071c988141dde61ab6f6071bbdc80380d84e1c3cf8af619dbd76984af
TLSH
T150D02B6996218AD11414EC0F02345306852D8F57F1895E05CE5243D03283C0E7183A24
MD5 SHA1 SHA512 TLSH

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biroask.exe

Path C:\Windows\SysWOW64\biroask.exe
Size 48KB
SHA256 1597a36c042cd49052325dd7840382a8a1ae7cd0e296c0372e0a820bdcc25cb9
MD5 4f6e292f801bf5da09607dd4ee912a12
SHA1 4eafb636692408c12473da365841bc5f026b6770
SHA512 7257fc442eb64d3222f72d9c83e17c324f2897d3bf7aeb1bef9d85c07201aefb5fc74a390c4aa80429b0541e2457ffe50c5d5f3b08678bd574aa5ab5f49f74ab
SSDEEP 768:WU1LRP0gVDqJn75dLqDKCC0u4X+Zat5mS0:WUpOumJnh0uUy
TLSH
T117235B4B651598B1CEE9023434D926179FB92E304BA740E3EFF32FC5ADB11A7E42052B
MD5 SHA1 SHA512 SSDEEP TLSH

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