b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7

Analysis

max time kernel
150s
max time network
140s
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, 05:34

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General

Target
jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe
Size 48KB
Sample260924-f9raqsfa73
SHA256 b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7
MD5 d21d7c718ed25f15b2ab18ad1f68bc0e
SHA1 b7672cba621894d7d2be4d6a5e21884f62a66b08
SHA512 c1fea42dfca39f30ab3574d6b0d0aab426e5493d459a4de1e5a6ed1d23c00633438919fc37843c89faa4c1555c19ee93db98688fe887dcd476f9ea484f2fca55
SSDEEP 384:0zozMozd5etvYSo3iJnQAPyEiUttp6wBZWyxPrPziPHvYYp780b:E2zzzGYSoMr6ZUttVXxPrPziPwYpt
TLSH
T15C235B8F590664F1C1EA0A353692691777EE4C3C32B950ABEB7349CC7CB948752E8E07
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
5196	zesttnsk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zesttns.dll	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe
File created	C:\Windows\SysWOW64\zesttnsk.exe	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.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
1908	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_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zesttnsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4324	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe
4324	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 5196	4324	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe	89
PID 4324 wrote to memory of 1908	4324	jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\SysWOW64\zesttnsk.exe
  C:\Windows\system32\zesttnsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5196
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1908

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_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7.exe.bat
Size 274B
SHA256 8f455f939078ae38d4f6d41703d00e735d789fbd4ffb6d42bed711f140c026fc
MD5 af8c16413f602eab70bfbcec9554ea6f
SHA1 43fbe758f278f414ff6fba541679685a10d1ea3e
SHA512 f2a23800e44526b15f1f4baa2f7b2abf79986d5008aec952b182c019458856d9e1ea038578a1ce1d3620491c14c395bbd20f6ab377713b4e8d76ba7c9fbf614d
TLSH
T186D02BD08656D1051832D36F05616F45C6214ED626CC3F2402264EC8300262CBB81B58
MD5 SHA1 SHA512 TLSH

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zesttnsk.exe

Path C:\Windows\SysWOW64\zesttnsk.exe
Size 48KB
SHA256 b3b0b5f42d75ab8c608a1bb45e771825520e7410e7849b8764a70d0f40554ee7
MD5 d21d7c718ed25f15b2ab18ad1f68bc0e
SHA1 b7672cba621894d7d2be4d6a5e21884f62a66b08
SHA512 c1fea42dfca39f30ab3574d6b0d0aab426e5493d459a4de1e5a6ed1d23c00633438919fc37843c89faa4c1555c19ee93db98688fe887dcd476f9ea484f2fca55
SSDEEP 384:0zozMozd5etvYSo3iJnQAPyEiUttp6wBZWyxPrPziPHvYYp780b:E2zzzGYSoMr6ZUttVXxPrPziPwYpt
TLSH
T15C235B8F590664F1C1EA0A353692691777EE4C3C32B950ABEB7349CC7CB948752E8E07
MD5 SHA1 SHA512 SSDEEP TLSH

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