40052363186049669dee683f2ffc32967593520be9606174d1a58f79390d9db3

Analysis

max time kernel
93s
max time network
100s
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 12:26

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General

Target

41a7d5d0e2bc581918014e2b0b5bf532_JaffaCakes118.dll
Size

41KB
MD5

41a7d5d0e2bc581918014e2b0b5bf532
SHA1

caaa6782c924d28f5b3a3ebf54045bd6ae3d4568
SHA256

40052363186049669dee683f2ffc32967593520be9606174d1a58f79390d9db3
SHA512

a3a5945a28f53068855fa8bcc0edf8bdddb500f3e954f919bd51b4dc2bf6e556cb3a010b14ee3f6d8617c416fc23446ee50cf9b74b87957cde2269fed9e8f4db
SSDEEP

768:aXsqoayZn+lQP56ifwH7+XdhQh1CDZKVqitDER61uAEw:8sqoSlQoifwHKXd+CCztDSwuAEw

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\ltmgccd = "{39715643-3DB6-4FC3-6592-CCF5A4241AFA}"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ffbp32.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\ffbp32.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4876	1940	WerFault.exe	83

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{39715643-3DB6-4FC3-6592-CCF5A4241AFA}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{39715643-3DB6-4FC3-6592-CCF5A4241AFA}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{39715643-3DB6-4FC3-6592-CCF5A4241AFA}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{39715643-3DB6-4FC3-6592-CCF5A4241AFA}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{39715643-3DB6-4FC3-6592-CCF5A4241AFA}\InprocServer32\ = "C:\\Windows\\SysWow64\\ffbp32.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1940	rundll32.exe
1940	rundll32.exe
1940	rundll32.exe
1940	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4820 wrote to memory of 1940	4820	rundll32.exe	83
PID 4820 wrote to memory of 1940	4820	rundll32.exe	83
PID 4820 wrote to memory of 1940	4820	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\41a7d5d0e2bc581918014e2b0b5bf532_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\41a7d5d0e2bc581918014e2b0b5bf532_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 816
    3⤵
    - Program crash
    PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1940 -ip 1940
1⤵
PID:4532

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

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Downloads

memory/1940-0-0x0000000056300000-0x000000005630C000-memory.dmp

Filesize
48KB

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memory/1940-3-0x0000000056300000-0x000000005630C000-memory.dmp

Filesize
48KB

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