256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4

Analysis

max time kernel
150s
max time network
124s
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, 05:08

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General

Target
jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe
Size 48KB
Sample260924-fsv8csss5l
SHA256 256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4
MD5 bec8716e6fe4b5ab37711025fa63fbf1
SHA1 99e6788456abf88bf329229d0b0d1bc11f24ffd0
SHA512 6cf3ea96de0811b0237c03320940d4dd33889f4b0b8bcfcd0ca1d3c5c443e7bb43cd0de1574f315c06b5e3cb1af78652379da594b1d84a2cccb2c84de14f5bf2
SSDEEP 384:bfzjaDYEkVKvYSlU2KjOnuFrPTtEMwqXsq7U:brOEDgYS62AOWrtEMDsqI
TLSH
T166235CCB900650F1C9EF093035D6B91B6BBA8D3D22DD60ABDEB754887B3508B6158F07
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
5724	zesttnsk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zesttns.dll	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe
File created	C:\Windows\SysWOW64\zesttnsk.exe	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.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
5688	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_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.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
2368	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe
2368	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 5724	2368	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe	90
PID 2368 wrote to memory of 5688	2368	jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\zesttnsk.exe
  C:\Windows\system32\zesttnsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5724
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:5688

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_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4.exe.bat
Size 274B
SHA256 072c8449c5b54c8787b5a25dc9c8207dbbb0404d1d205a1532f131ca6110585f
MD5 6b74a749b6decb9ed57884362fb46423
SHA1 f65fea51e7e4978b44bf76105c6547353f4fe315
SHA512 3b68bcbc10cc127c85fa0f59bdda9de4eeca483d663f04de76a8ea18847413683e99be0e0f7c6a644e85f3ca8ab747563b7eb8f9e750429ec9a4cd0d322885ec
TLSH
T1E8D0C2410265C2548C40FC0B39351A87AE3565553A8E1E215A124CC50024C3CBEBAACF
MD5 SHA1 SHA512 TLSH

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zesttnsk.exe

Path C:\Windows\SysWOW64\zesttnsk.exe
Size 48KB
SHA256 256679a51ac6ba023aabf395c5684c0cb0591e8b2680c13f464aedd57706cad4
MD5 bec8716e6fe4b5ab37711025fa63fbf1
SHA1 99e6788456abf88bf329229d0b0d1bc11f24ffd0
SHA512 6cf3ea96de0811b0237c03320940d4dd33889f4b0b8bcfcd0ca1d3c5c443e7bb43cd0de1574f315c06b5e3cb1af78652379da594b1d84a2cccb2c84de14f5bf2
SSDEEP 384:bfzjaDYEkVKvYSlU2KjOnuFrPTtEMwqXsq7U:brOEDgYS62AOWrtEMDsqI
TLSH
T166235CCB900650F1C9EF093035D6B91B6BBA8D3D22DD60ABDEB754887B3508B6158F07
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download