4b2639b5a9fe50d079c0b0c24894b470531a3cfc95aeadd360c8d68e66d8a452

Analysis

max time kernel
140s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 15:22

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General

Target

065571bfff8adaa104d05002153efd64_JaffaCakes118.dll
Size

238KB
MD5

065571bfff8adaa104d05002153efd64
SHA1

2abda22ff2e5183815ff2ca96f43a10be957c14d
SHA256

4b2639b5a9fe50d079c0b0c24894b470531a3cfc95aeadd360c8d68e66d8a452
SHA512

274730e454d868e2ebc8691a47636039a43a4c875c94b2a8866c893cff3d273d734936abb3436709711c0baab6fc5c27ef0b72e67393875f4636a4e5664de25b
SSDEEP

3072:d/YKmCJaqJ2sMOmj+Or6fc1FG6MrEoEvkYw:ddmCJaIpmaOr/F9QEQ

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\cdj = "{e75f1288-6fd7-b42c-70e8-6fd79a009f50}"	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
636	rundll32.exe
636	rundll32.exe

Drops file in System32 directory 4 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 1 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

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e75f1288-6fd7-b42c-70e8-6fd79a009f50}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e75f1288-6fd7-b42c-70e8-6fd79a009f50}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e75f1288-6fd7-b42c-70e8-6fd79a009f50}\InprocServer32\ = "C:\\Windows\\SysWow64\\xye.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e75f1288-6fd7-b42c-70e8-6fd79a009f50}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e75f1288-6fd7-b42c-70e8-6fd79a009f50}	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
636	rundll32.exe
636	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
636	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 636	4080	rundll32.exe	82
PID 4080 wrote to memory of 636	4080	rundll32.exe	82
PID 4080 wrote to memory of 636	4080	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\065571bfff8adaa104d05002153efd64_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\065571bfff8adaa104d05002153efd64_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:636

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\bci.dll

Filesize
625KB

MD5
eccf28d7e5ccec24119b88edd160f8f4

SHA1
98509587a3d37a20b56b50fd57f823a1691a034c

SHA256
820c83c0533cfce2928e29edeaf6c255bc19ac9718b25a5656d99ffac30a03d6

SHA512
c1c94bbb781625b2317f0a8178d3a10d891fb71bca8f82cd831c484e8ab125301b82a14fe2ff070dc99a496cc00234300fa5536401018c40d49d44ae89409670

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

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/636-0-0x0000000000401000-0x0000000000409000-memory.dmp

Filesize
32KB

Download
memory/636-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/636-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/636-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/636-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/636-17-0x0000000000401000-0x0000000000409000-memory.dmp

Filesize
32KB

Download
memory/636-18-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/636-21-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download