9a6ed61fe11c1f37dd3d27302d39dabf7e799000a2ec51d44ee0fc9e4ef63000

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2025, 19:28

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General

Target

JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe
Size

876KB
MD5

94c767b1879b73abddbb05f5dd4362ee
SHA1

98881a09e1158b9cec31460dfa6842409a83572a
SHA256

9a6ed61fe11c1f37dd3d27302d39dabf7e799000a2ec51d44ee0fc9e4ef63000
SHA512

5d8e68f05e989b2885ad55c8d0c25e1ad7a5d7854fe1b3e5a45e23b7fe09d12b338f6e71203c76e4097c3239520367d921c9b5fdb9c99253027282c026d0eff4
SSDEEP

24576:1563ey8gZqj4ysYAsBAgYYbmJTpjZFNLnJ:n/+qEyVAsigYYUtjPVJ

Score

10^/10

aspackv2 discovery persistence phishing upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	temp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	temp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	temp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	temp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	temp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	temp.exe

A potential corporate email address has been identified in the URL: [email protected]
phishing

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0008000000024229-28.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe

Executes dropped EXE 3 IoCs

pid	Process
2744	temp.exe
2972	fservice.exe
5396	services.exe

Loads dropped DLL 5 IoCs

pid	Process
5396	services.exe
5396	services.exe
5396	services.exe
2972	fservice.exe
2744	temp.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	temp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	temp.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	temp.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023713-4.dat	upx
behavioral2/memory/2744-8-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/2972-17-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/2972-42-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/2744-45-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-47-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-48-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-50-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-52-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-54-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-56-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-58-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-60-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-62-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-64-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-66-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-68-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-70-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-72-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral2/memory/5396-74-0x0000000000400000-0x00000000005FC000-memory.dmp	upx

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\temp.exe	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe
File opened for modification	C:\Windows\system\sservice.exe	temp.exe
File created	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\temp.exe.bat	temp.exe
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	temp.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 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	temp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2508	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe
2508	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe
5396	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5396	services.exe
5396	services.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2744	2508	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe	85
PID 2508 wrote to memory of 2744	2508	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe	85
PID 2508 wrote to memory of 2744	2508	JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe	85
PID 2744 wrote to memory of 2972	2744	temp.exe	87
PID 2744 wrote to memory of 2972	2744	temp.exe	87
PID 2744 wrote to memory of 2972	2744	temp.exe	87
PID 2972 wrote to memory of 5396	2972	fservice.exe	89
PID 2972 wrote to memory of 5396	2972	fservice.exe	89
PID 2972 wrote to memory of 5396	2972	fservice.exe	89
PID 5396 wrote to memory of 3736	5396	services.exe	90
PID 5396 wrote to memory of 3736	5396	services.exe	90
PID 5396 wrote to memory of 3736	5396	services.exe	90
PID 5396 wrote to memory of 6104	5396	services.exe	91
PID 5396 wrote to memory of 6104	5396	services.exe	91
PID 5396 wrote to memory of 6104	5396	services.exe	91
PID 2744 wrote to memory of 5732	2744	temp.exe	94
PID 2744 wrote to memory of 5732	2744	temp.exe	94
PID 2744 wrote to memory of 5732	2744	temp.exe	94
PID 3736 wrote to memory of 1740	3736	NET.exe	95
PID 3736 wrote to memory of 1740	3736	NET.exe	95
PID 3736 wrote to memory of 1740	3736	NET.exe	95
PID 6104 wrote to memory of 6004	6104	NET.exe	96
PID 6104 wrote to memory of 6004	6104	NET.exe	96
PID 6104 wrote to memory of 6004	6104	NET.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94c767b1879b73abddbb05f5dd4362ee.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\temp.exe
  "C:\Windows\temp.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Adds policy Run key to start application
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies WinLogon
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\fservice.exe
    C:\Windows\system32\fservice.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2972
  - - C:\Windows\services.exe
      C:\Windows\services.exe -XP
      4⤵
      Modifies WinLogon for persistence
      Adds policy Run key to start application
      Boot or Logon Autostart Execution: Active Setup
      Executes dropped EXE
      Loads dropped DLL
      Modifies WinLogon
      Drops file in System32 directory
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:5396
    - - C:\Windows\SysWOW64\NET.exe
        
        NET STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3736
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:1740
    - - C:\Windows\SysWOW64\NET.exe
        
        NET STOP navapsvc
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:6104
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:6004
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\temp.exe.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
C:\Windows\temp.exe

Filesize
342KB

MD5
b10a75b89f7dbc3229f33566c3d6efa4

SHA1
c2c14b5e8a30b17112586d2acb95ba3cf81ea39f

SHA256
a9cb17ac00feac901c606ad9b34fcf2cf18cad1c080a008bb0fbed6cb3c8ca22

SHA512
2c47ea67ba8c287eb3d6ccf53c95a398cbb766fb504e792da26fd3939709608dc17c11120d8e235a693f558373783411b98e8176b7e6176f0dd126c9d3c2ff98

Download Submit
C:\Windows\temp.exe.bat

Filesize
79B

MD5
76d35fae1ccf7fc32ca4370ce6f294bb

SHA1
295e2f1aebfd0d9b3fb5d311d824f69a6585edd9

SHA256
4fb63a6f2dde71e18ac129a357d3728bb2d85cccbad9b65a774e4d08d552acfc

SHA512
077c91cbf3583ebc0e523a0105467d96c3b2f2839ed5e71a82d968e9be222551ff309ee7ea1a0be60b93c4e88f98f7c63a9f8fd2729ceb3457f67ae3691e6e4c

Download Submit
memory/2744-8-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2744-9-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/2744-45-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2972-17-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2972-18-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/2972-42-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-49-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/5396-60-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-30-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/5396-48-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-50-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-52-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-54-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-56-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-58-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-47-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-62-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-64-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-66-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-68-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-70-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-72-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/5396-74-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download