a676a24e5af19109acbc5400b47376e2387bbc28d070d7c0979b86190fe68145

Analysis

max time kernel
150s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
20/06/2024, 14:55

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General

Target

07080279b57a475f1378e67f1c4bd9e0_JaffaCakes118.dll
Size

33KB
MD5

07080279b57a475f1378e67f1c4bd9e0
SHA1

3c1ee36a8660e167fbd525512c781991890d9f48
SHA256

a676a24e5af19109acbc5400b47376e2387bbc28d070d7c0979b86190fe68145
SHA512

433c9ee68b49e1e7bc6c95daf167fbf5b03c73be52f720840509c1d61a4f4e8fd7ee1cd68e2394bcbc2bbe6a25d062f1300fb6e8a0695360d1ccd62354e61ee0
SSDEEP

768:re4TH/zy0W5defiInLF5a/nAC+JLyrUUk/q:64fzyD5aiIZ5a/ACCCFB

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4968	rundll32.exe
4968	rundll32.exe
3900	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\\xxyvutSl.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28030FA8-2428-4DE6-B0F3-CE9494E1A412}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28030FA8-2428-4DE6-B0F3-CE9494E1A412}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28030FA8-2428-4DE6-B0F3-CE9494E1A412}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28030FA8-2428-4DE6-B0F3-CE9494E1A412}\InprocServer32\ = "C:\\Windows\\SysWow64\\xxyvutSl.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4968	rundll32.exe
4968	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4968	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4968	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 4968	3332	rundll32.exe	90
PID 3332 wrote to memory of 4968	3332	rundll32.exe	90
PID 3332 wrote to memory of 4968	3332	rundll32.exe	90
PID 4968 wrote to memory of 620	4968	rundll32.exe	5
PID 4968 wrote to memory of 3900	4968	rundll32.exe	103
PID 4968 wrote to memory of 3900	4968	rundll32.exe	103
PID 4968 wrote to memory of 3900	4968	rundll32.exe	103

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:620

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\07080279b57a475f1378e67f1c4bd9e0_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\07080279b57a475f1378e67f1c4bd9e0_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\xxyvutSl.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:3900

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4228,i,2113996974559895641,18156918660790954073,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:8
1⤵
PID:4024

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\xxyvutSl.dll

Filesize
33KB

MD5
07080279b57a475f1378e67f1c4bd9e0

SHA1
3c1ee36a8660e167fbd525512c781991890d9f48

SHA256
a676a24e5af19109acbc5400b47376e2387bbc28d070d7c0979b86190fe68145

SHA512
433c9ee68b49e1e7bc6c95daf167fbf5b03c73be52f720840509c1d61a4f4e8fd7ee1cd68e2394bcbc2bbe6a25d062f1300fb6e8a0695360d1ccd62354e61ee0

Download Submit
memory/3900-14-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3900-15-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4968-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4968-7-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4968-9-0x0000000000BC0000-0x0000000000BD0000-memory.dmp

Filesize
64KB

Download