fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7

Analysis

max time kernel
150s
max time network
142s
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, 06:02

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General

Target
jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe
Size 48KB
Sample260924-gre1esfe27
SHA256 fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7
MD5 1ff7653cf9c789875375720c3210a46b
SHA1 e33e3a97bab31aeb5d18e8151a7a75660cd41b7c
SHA512 cea2153a54c91902beb952080e43305f0c809b3f860096cf25adbb670c14b02d63063e106804453c6f00286fb90df82466319e0875b0739ba3563f5561512180
SSDEEP 768:/ysQrYSBxUMHjd1Bi2ihPbPaktPAz16x:Ks58xrj1bZ
TLSH
T1C3236C8F940274B1C19A09783A966E136BEF4C3C32B5509BE7B759CC7DAD08B52D4E0B
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
936	zesttnsk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zesttns.dll	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe
File created	C:\Windows\SysWOW64\zesttnsk.exe	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.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
1232	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zesttnsk.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1028	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe
1028	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 936	1028	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe	89
PID 1028 wrote to memory of 1232	1028	jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Windows\SysWOW64\zesttnsk.exe
  C:\Windows\system32\zesttnsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:936
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1232

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_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7.exe.bat
Size 274B
SHA256 0579095b0d35e6f66435a56f2f313477386cdc34025e89e11b103130869882f1
MD5 848ffa5e32e7f022fd6abf2d4d023d76
SHA1 c7702342773b9f47e6e946e371c3f67f2161325d
SHA512 3cc4017e7234863aaa3d79dd405be880f6c9098969c154daa302f5a2d1148d09744d327e77a821b5aaa18af0ce57443f1cbc2949e9a578641d5b96b5da21b16b
TLSH
T101D02BA08E52CACD9CF4C13F05B82B0C814C2DC0218C2B04151747D8109641976D1309
MD5 SHA1 SHA512 TLSH

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zesttnsk.exe

Path C:\Windows\SysWOW64\zesttnsk.exe
Size 48KB
SHA256 fb25760b2c979b53766e6948b5ac238dc3d5eb7efedb1d78ba0e03c2699280f7
MD5 1ff7653cf9c789875375720c3210a46b
SHA1 e33e3a97bab31aeb5d18e8151a7a75660cd41b7c
SHA512 cea2153a54c91902beb952080e43305f0c809b3f860096cf25adbb670c14b02d63063e106804453c6f00286fb90df82466319e0875b0739ba3563f5561512180
SSDEEP 768:/ysQrYSBxUMHjd1Bi2ihPbPaktPAz16x:Ks58xrj1bZ
TLSH
T1C3236C8F940274B1C19A09783A966E136BEF4C3C32B5509BE7B759CC7DAD08B52D4E0B
MD5 SHA1 SHA512 SSDEEP TLSH

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