990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94

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, 22:24

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General

Target
jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe
Size 48KB
Sample260925-2bhftsaa36
SHA256 990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94
MD5 a350f7127b0d733afe2a0005239eb106
SHA1 640dd1164c75fe5fd6bbe0aec5458066160e497e
SHA512 9859f127e7af01ecb389182bb977b525a781f7074a9724b6117b011436cde5f76617db87d86f30d8ff8e956a9e00312c439b855d1ddcf2f7ce713f48cab4209b
SSDEEP 768:dfnYNgSZ+x1eHv65NmNl9CDCVFvhJWat5JxLBHT:dfnWpk1eHy5NOXCDCVBhJnVh
TLSH
T183233B86B6508CF3C39545B8707EBB294FBB6C3403769C939BF33A9A5C215A38835917
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
3488	lenschk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lensch.dll	jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe
File created	C:\Windows\SysWOW64\lenschk.exe	jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.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
3660	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_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.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 4636 wrote to memory of 3488	4636	jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe	90
PID 4636 wrote to memory of 3660	4636	jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\lenschk.exe
  C:\Windows\system32\lenschk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3660

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_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94.exe.bat
Size 274B
SHA256 4ea233871b25fb95e889d84dbba87e331c8cad15009619a1728af4c894d14220
MD5 979c4d76d3f250a6549d714577297bac
SHA1 0a769710b7cf1f19a85e4c849b82d13aeebf5313
SHA512 7e617de6d559fec1c1c303b21bb21d462b85ba375ed027a8eb99daf80a6d8dcc92dae567ff38f364fc6a601fb28a1053250688fe9ed0304daaba6caf36ed2d1f
TLSH
T1A5D0C28082A1E979040CD10B28B44F14C1114E6032972F214F33C3D51263024F3C5B80
MD5 SHA1 SHA512 TLSH

Submit Download

lenschk.exe

Path C:\Windows\SysWOW64\lenschk.exe
Size 48KB
SHA256 990735c86915aba93e801640b11978c9fda5779fe8baa1551e6663205da86f94
MD5 a350f7127b0d733afe2a0005239eb106
SHA1 640dd1164c75fe5fd6bbe0aec5458066160e497e
SHA512 9859f127e7af01ecb389182bb977b525a781f7074a9724b6117b011436cde5f76617db87d86f30d8ff8e956a9e00312c439b855d1ddcf2f7ce713f48cab4209b
SSDEEP 768:dfnYNgSZ+x1eHv65NmNl9CDCVFvhJWat5JxLBHT:dfnWpk1eHy5NOXCDCVBhJnVh
TLSH
T183233B86B6508CF3C39545B8707EBB294FBB6C3403769C939BF33A9A5C215A38835917
MD5 SHA1 SHA512 SSDEEP TLSH