70cb73253213ac23d8f250ee8326ecdd5e7517d0bfcc045238af215669d2225c

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 13:51

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General

Target

67d5084af18e3ca8304a8b2df428cc16_JaffaCakes118.dll
Size

25KB
MD5

67d5084af18e3ca8304a8b2df428cc16
SHA1

893022046143d70d1a8ea0728d4cb916d73634f2
SHA256

70cb73253213ac23d8f250ee8326ecdd5e7517d0bfcc045238af215669d2225c
SHA512

259109894ecd29e504e577460596e67a54ecbef289d764350db54e278dadf5c699b7be0acb098345e8e7ea2dcc233f19525e2ecff22a804a1744014880fce4d8
SSDEEP

768:Q54IFbjanUh1zUT6sTx1xrRQKES5fWNPV:QeIRanUhC6sl1xFQ8Wr

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
2716	rundll32.exe
2716	rundll32.exe
5040	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\\efcARjHx.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32\ = "C:\\Windows\\SysWow64\\efcARjHx.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FE24F0ED-C471-4DE4-B073-B077DAC59994}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2716	rundll32.exe
2716	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2716	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2716	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2716	2468	rundll32.exe	84
PID 2468 wrote to memory of 2716	2468	rundll32.exe	84
PID 2468 wrote to memory of 2716	2468	rundll32.exe	84
PID 2716 wrote to memory of 612	2716	rundll32.exe	5
PID 2716 wrote to memory of 5040	2716	rundll32.exe	96
PID 2716 wrote to memory of 5040	2716	rundll32.exe	96
PID 2716 wrote to memory of 5040	2716	rundll32.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\67d5084af18e3ca8304a8b2df428cc16_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\67d5084af18e3ca8304a8b2df428cc16_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:2716
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\efcARjHx.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:5040

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\efcARjHx.dll

Filesize
25KB

MD5
67d5084af18e3ca8304a8b2df428cc16

SHA1
893022046143d70d1a8ea0728d4cb916d73634f2

SHA256
70cb73253213ac23d8f250ee8326ecdd5e7517d0bfcc045238af215669d2225c

SHA512
259109894ecd29e504e577460596e67a54ecbef289d764350db54e278dadf5c699b7be0acb098345e8e7ea2dcc233f19525e2ecff22a804a1744014880fce4d8

Download Submit
memory/2716-1-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2716-0-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2716-2-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2716-10-0x0000000002E10000-0x0000000002E22000-memory.dmp

Filesize
72KB

Download
memory/2716-9-0x0000000002E10000-0x0000000002E22000-memory.dmp

Filesize
72KB

Download
memory/2716-12-0x0000000002E10000-0x0000000002E22000-memory.dmp

Filesize
72KB

Download
memory/5040-18-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/5040-17-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/5040-19-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/5040-20-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download