3ac3876ca9ac36852526f5c7c58ed186433fd89391b57cd07558a8a5b4c4c59b

Analysis

max time kernel
149s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2024 03:44

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General

Target

a9733cd6f34e2235bb84dca3daad10cf_JaffaCakes118.dll
Size

25KB
MD5

a9733cd6f34e2235bb84dca3daad10cf
SHA1

2a5d68086fff9d13e973733f58eb64dc2a9eaa32
SHA256

3ac3876ca9ac36852526f5c7c58ed186433fd89391b57cd07558a8a5b4c4c59b
SHA512

d61e9e70a6e253851c67047bfc6e10e8e4779c7781f6276de25d05d6ac222e9cef5145c699edd368d0ba34548c7928621c01961074667edcf3e87b735d8b0621
SSDEEP

768:IaDrw61SCt5VolxqkTMPGPGPwhqwqPKfjE:Iag6Q2+MPGPGPGqPk4

Score

7^/10

discovery persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
2640	rundll32.exe
2640	rundll32.exe
2156	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\hgGxYSKa.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\hgGxYSKa.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\hgGxYSKa.dll	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CFE17632-2A22-4271-B134-A9D9E2C3EAF5}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CFE17632-2A22-4271-B134-A9D9E2C3EAF5}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CFE17632-2A22-4271-B134-A9D9E2C3EAF5}\InprocServer32\ = "C:\\Windows\\SysWow64\\hgGxYSKa.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CFE17632-2A22-4271-B134-A9D9E2C3EAF5}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2640	rundll32.exe
2640	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2640	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 2640	904	rundll32.exe	83
PID 904 wrote to memory of 2640	904	rundll32.exe	83
PID 904 wrote to memory of 2640	904	rundll32.exe	83
PID 2640 wrote to memory of 608	2640	rundll32.exe	5
PID 2640 wrote to memory of 2156	2640	rundll32.exe	96
PID 2640 wrote to memory of 2156	2640	rundll32.exe	96
PID 2640 wrote to memory of 2156	2640	rundll32.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9733cd6f34e2235bb84dca3daad10cf_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9733cd6f34e2235bb84dca3daad10cf_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\hgGxYSKa.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

C:\Windows\SysWOW64\hgGxYSKa.dll

Filesize
25KB

MD5
a9733cd6f34e2235bb84dca3daad10cf

SHA1
2a5d68086fff9d13e973733f58eb64dc2a9eaa32

SHA256
3ac3876ca9ac36852526f5c7c58ed186433fd89391b57cd07558a8a5b4c4c59b

SHA512
d61e9e70a6e253851c67047bfc6e10e8e4779c7781f6276de25d05d6ac222e9cef5145c699edd368d0ba34548c7928621c01961074667edcf3e87b735d8b0621

Download Submit
memory/2156-15-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2156-16-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2156-17-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2640-0-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2640-1-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2640-8-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2640-10-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download