31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305

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
25/09/2026, 22:25

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General

Target
jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe
Size 48KB
Sample260925-2cb1fayw8n
SHA256 31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305
MD5 efc0be73508eccbb544d871dfdf10c15
SHA1 f1633266193894d074b7236bac7d7265af91adfb
SHA512 864e2662547301b4998e07da42c5aaaa78b3c612e1ed2a2508477eb3681a76828d5015a74b829f0320a6b78f1f56f10239de77f442cd9a6f6e94fdb53885e5d4
SSDEEP 768:T+M/uqFoz3YZV2pQyN2YLhqslqNkHMat502xLBHQC:iM/XicZQK4qvNk562VhQC
TLSH
T158236E4AA56194F3C6EF013030BE7B1A0E7B6E3086A9C8E3C7E73E85997461B5536D07
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
6044	lenschk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lensch.dll	jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe
File created	C:\Windows\SysWOW64\lenschk.exe	jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.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
2784	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_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lenschk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 6044	4440	jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe	89
PID 4440 wrote to memory of 2784	4440	jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\SysWOW64\lenschk.exe
  C:\Windows\system32\lenschk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:6044
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2784

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_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305.exe.bat
Size 274B
SHA256 cfdcc491ad657eea076cfc8a5421cc4dfae04383c6f079b28cca91527c591c1e
MD5 a4f5a8230a12d3e930a09f3bc21468f8
SHA1 47f142ff6a63a042eb37c9dc59da8ca0a4c1564f
SHA512 9706d74f4913c64acfa95cdd92971055242c6d0b9cdaea3772c99861278b477f584a92bdc89a7f399cb4ee84a63ffd8a5f49ee6222e6ab3692993e7d3466de91
TLSH
T129D02B65125A4C95D408E46F067942494290685039863E120F56C2F2364341CB1CB708
MD5 SHA1 SHA512 TLSH

Submit Download

lenschk.exe

Path C:\Windows\SysWOW64\lenschk.exe
Size 48KB
SHA256 31c81c2421fd7a5c7ece67aa437dcb9e0262ad545fd2418933130a4ae7b37305
MD5 efc0be73508eccbb544d871dfdf10c15
SHA1 f1633266193894d074b7236bac7d7265af91adfb
SHA512 864e2662547301b4998e07da42c5aaaa78b3c612e1ed2a2508477eb3681a76828d5015a74b829f0320a6b78f1f56f10239de77f442cd9a6f6e94fdb53885e5d4
SSDEEP 768:T+M/uqFoz3YZV2pQyN2YLhqslqNkHMat502xLBHQC:iM/XicZQK4qvNk562VhQC
TLSH
T158236E4AA56194F3C6EF013030BE7B1A0E7B6E3086A9C8E3C7E73E85997461B5536D07
MD5 SHA1 SHA512 SSDEEP TLSH