4813b66d127510a7596fc2c5040d11cd22249b43ff6f3da5b2e43a95edf6be2c

Analysis

max time kernel
150s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/10/2026, 22:30

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General

Target
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Size 23KB
Sample261013-2e7vwsct7t
SHA256 4813b66d127510a7596fc2c5040d11cd22249b43ff6f3da5b2e43a95edf6be2c
MD5 0dcb101db36b0750ad9468e6cca2ff7f
SHA1 3eeacb2d49c197276ee18bc61b7a66fe7c014ec0
SHA512 a57ad150cbc78f11b42a8b37328848f9c79f4dfe401bc8d91947291f619a25691d359f55c33d4124da343c4af52773521bfb74a3c34ad127e8532752acd9c56a
SSDEEP 384:NPzSCPUmFKrrHcAO8e3JUZuSRRHmDlc4Ztlly0be0bTTuq48PGtF6DP:ZmAUmFMLcAO8e5UZuChma4Zt/VC0bWqH
TLSH
T15FB2D00AC7AAF6FBE03967FD0103B86CBA001DE4554B9F49C87CE663E85241854A4B9D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery execution upx

Malware Config

Signatures

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchost.exe:exe.exe	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
File created	C:\Windows\SysWOW64\icf.exe	jaffacakes118_HEUR.Trojan.Win32.Generic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4612 set thread context of 3676	4612	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4612-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/3676-4-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/4612-7-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/3676-8-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/3676-5-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/3676-10-0x0000000000400000-0x0000000000412000-memory.dmp	upx

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
4800	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2488	3676	WerFault.exe	89
1148	3676	WerFault.exe	89

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_HEUR.Trojan.Win32.Generic.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 3676	4612	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 4612 wrote to memory of 3676	4612	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 4612 wrote to memory of 4800	4612	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 352
    3⤵
    - Program crash
    PID:2488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 372
    3⤵
    - Program crash
    PID:1148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\9371651.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 236 -p 3676 -ip 3676
1⤵
PID:5492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 3676 -ip 3676
1⤵
PID:5972

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

9371651.bat

Path C:\Users\Admin\AppData\Local\Temp\9371651.bat
Size 249B
SHA256 4ee5d8808f5e3a35dadcb1a67cc47e18bfb2caa7da6949120349bcd0b69d3569
MD5 cb0c6ff768b867a51baeee9502f3a2e3
SHA1 c9c8bdba6f0e751c6d29e5c211c0f4dfc55e8cde
SHA512 67a87ba0ad8544885f562203d1ab00d4aa7eebf197cb184811a5783775709d796857f48a76f58c1e73444cba8c72cbe8807f9c713490c441c15a087ba9de9d89
TLSH
T14FD05B424147CB1D0880886715349B8DD3584D5926883F340331C1C4567241E77D6725
MD5 SHA1 SHA512 TLSH

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memory/3676-4-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/3676-8-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/3676-5-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/3676-10-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4612-0-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4612-7-0x0000000000400000-0x0000000000412000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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