97a0d853f75991df9b59cd243696a207b5478700a39b5d3d3d02f4fcc84e57a4

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
23/06/2024, 23:59

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General

Target

04d4259263f769812f9e7383313a8947_JaffaCakes118.dll
Size

231KB
MD5

04d4259263f769812f9e7383313a8947
SHA1

0a56741bd5f7619c466e6f5c3a2144330bac7062
SHA256

97a0d853f75991df9b59cd243696a207b5478700a39b5d3d3d02f4fcc84e57a4
SHA512

017d3a8a235b87921f3a103d23063faa2f6875464fa1820c058ae437b2127efc321913de7aed093ba27887ec9e13d71881d1659cdd892c9214103576fb83947a
SSDEEP

3072:zysX0WxnWd/IkmL+PViEbmzwtz/wk8YWb2:mskd/IkmuVfyWdM2

Score

10^/10

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\ldmwdqixq = "{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2472	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}\InprocServer32\ = "C:\\Windows\\SysWow64\\gyhryldsl.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{35c63a41-bd4e-0293-ce5f-bd4eb2c9215b}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2472	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2472	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28
PID 2020 wrote to memory of 2472	2020	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\04d4259263f769812f9e7383313a8947_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\04d4259263f769812f9e7383313a8947_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2472

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

\Windows\SysWOW64\yqzjqdvkd.dll

Filesize
625KB

MD5
95e2376b3323f062eb562b8586d0f14a

SHA1
453d4c3bf4a489433b593420a37bbffb7749875a

SHA256
bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

SHA512
b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

Download Submit
memory/2472-0-0x0000000000650000-0x0000000000693000-memory.dmp

Filesize
268KB

Download
memory/2472-1-0x0000000000651000-0x0000000000658000-memory.dmp

Filesize
28KB

Download
memory/2472-7-0x0000000000650000-0x0000000000693000-memory.dmp

Filesize
268KB

Download
memory/2472-8-0x0000000000650000-0x0000000000693000-memory.dmp

Filesize
268KB

Download
memory/2472-11-0x0000000000650000-0x0000000000693000-memory.dmp

Filesize
268KB

Download