b50f48dae2d38e8ebceaf67193264677e37263734a03632ac51c8e50f4bc06e3

Analysis

max time kernel
139s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-08-2024 03:08

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General

Target

8495f179b7ef1be19104f81ecbcec94d_JaffaCakes118.dll
Size

133KB
MD5

8495f179b7ef1be19104f81ecbcec94d
SHA1

7459fe5875a169e19b7d4d2fd3a17e3cfbcf8d5f
SHA256

b50f48dae2d38e8ebceaf67193264677e37263734a03632ac51c8e50f4bc06e3
SHA512

b5db7365e92c92d7cf314d260950b288aad6faa30576c9369d654059ed7b81e8a01d699a2c2560f2ffd6542b2c5fde45228502781991b2218685bb70cd57bbad
SSDEEP

3072:I0wpqFegLt9a46GT40hAzJLv2jW//0Myx9yFr:I0RFegLtjMA2FvCW//0Dxo

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NSTOP\Parameters\ServiceDll = "C:\\Program Files (x86)\\Common Files\\System\\update.log"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1508	svchost.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\System\update.log	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\update.log	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4356	1508	WerFault.exe	85

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	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2204	rundll32.exe
2204	rundll32.exe
1508	svchost.exe
1508	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeCreateGlobalPrivilege	2204	rundll32.exe
Token: SeCreateGlobalPrivilege	1508	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 2204	2976	rundll32.exe	84
PID 2976 wrote to memory of 2204	2976	rundll32.exe	84
PID 2976 wrote to memory of 2204	2976	rundll32.exe	84
PID 2204 wrote to memory of 2376	2204	rundll32.exe	86
PID 2204 wrote to memory of 2376	2204	rundll32.exe	86
PID 2204 wrote to memory of 2376	2204	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8495f179b7ef1be19104f81ecbcec94d_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8495f179b7ef1be19104f81ecbcec94d_JaffaCakes118.dll,#1
  2⤵
  - Server Software Component: Terminal Services DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\\240607250.BaT
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2376

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k NSTOP -s NSTOP
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1508 -s 732
  2⤵
  - Program crash
  PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1508 -ip 1508
1⤵
PID:3696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

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

C:\Users\Admin\AppData\Local\Temp\240607250.BaT

Filesize
278B

MD5
3935c85fcc4b2a26138af8790a9e39cd

SHA1
4a1610818f9a59f8a87acdd421d6ac0ab6e3c611

SHA256
7a709272471e2c732d97e33f731dd37976c1cf4b27e71901e5f3633c5d61f372

SHA512
1323b9d5ec43d35dbcef352e5383e4492035fdbb8b2d758f8db7a907074f772b043e9b64925c17a6da14b023c02025bff3a1affeeecb0f9826ceb1dad7b88f01

Download Submit
\??\c:\program files (x86)\common files\system\update.log

Filesize
133KB

MD5
8495f179b7ef1be19104f81ecbcec94d

SHA1
7459fe5875a169e19b7d4d2fd3a17e3cfbcf8d5f

SHA256
b50f48dae2d38e8ebceaf67193264677e37263734a03632ac51c8e50f4bc06e3

SHA512
b5db7365e92c92d7cf314d260950b288aad6faa30576c9369d654059ed7b81e8a01d699a2c2560f2ffd6542b2c5fde45228502781991b2218685bb70cd57bbad

Download Submit
memory/1508-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download