3e693b725c9e2ac7c0ffb034abf5841fe523a84c8015cdcbed635480617370d8

Analysis

max time kernel
32s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 12:06

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General

Target

4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe
Size

106KB
MD5

4197647790d6d2be41be9db06dfa84b2
SHA1

992181ff24f4063e9b1d8b94ef4d03ccf3ceb31d
SHA256

3e693b725c9e2ac7c0ffb034abf5841fe523a84c8015cdcbed635480617370d8
SHA512

6f6e9f1f9950ec4015782eeca99af3aa09a2e02b9a03a6afc43db870423b3dcd009418c25d5c7d76475384567fcd9d53bb4e5af82a982c2d6c13066a110e9f3d
SSDEEP

1536:T0OtxariAp2+1duQbZk8QOJM0btaSDVy+jhgMkTrAthENge7v2VWp:RxWp2ismZk1QNtZDVthFkeg7eQp

Score

8^/10

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\Ruser\Parameters\ServiceDll = "C:\\Windows\\system32\\RUser.Dll"	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe

Loads dropped DLL 2 IoCs

pid	Process
4228	svchost.exe
4228	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\RUser.Dll	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\RUser.Dll	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2468	4228	WerFault.exe	88

Kills process with taskkill 1 IoCs

evasion

pid	Process
1552	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe
1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe
Token: SeDebugPrivilege	1552	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 1552	1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe	83
PID 1772 wrote to memory of 1552	1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe	83
PID 1772 wrote to memory of 1552	1772	4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4197647790d6d2be41be9db06dfa84b2_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /im 360tray.exe /f
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1552

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k Ruser
1⤵
- Loads dropped DLL
PID:4228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4228 -s 820
  2⤵
  - Program crash
  PID:2468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4228 -ip 4228
1⤵
PID:1876

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\ruser.dll

Filesize
135KB

MD5
7f5cac1f8bf7de8792255945d1f269ea

SHA1
d44ca079988efcc07be5727de97aca1703a4fb69

SHA256
99381a75d93bedcf2233027b0707cd11fd388055b38087a05d2900b022f86868

SHA512
9048171324a5a8aec25b146d14fa2ee93c1114a9c172564ad1591590f7346352087182d8b47ca63f247b3a4732b1fdb0b2ca0849ff0c9159c9ba95e532ef5ed7

Download Submit
memory/1772-0-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1772-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/1772-6-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/4228-9-0x00000000010B0000-0x00000000013DB000-memory.dmp

Filesize
3.2MB

Download
memory/4228-10-0x00000000010B0000-0x00000000013DB000-memory.dmp

Filesize
3.2MB

Download