e7e35d583a1ebe2a6663f4b11ba88b238fd65239a72e5d3a0b5ca57852c38de9

Analysis

max time kernel
150s
max time network
117s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 03:37

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General

Target

b1f6dd0e743530ad2ed98e0d1b7387d1_JaffaCakes118.dll
Size

25KB
MD5

b1f6dd0e743530ad2ed98e0d1b7387d1
SHA1

2af8bb54b4fabbd567241e794dd2b7f82f2a9eb2
SHA256

e7e35d583a1ebe2a6663f4b11ba88b238fd65239a72e5d3a0b5ca57852c38de9
SHA512

63ad80e47e66acb451793e7a558b1218c5df0d18da88ce93342b23fb51834268b5dd468ac79684bcca147c8871419d9d6f9bd759c28b59db9f4dfaa34f2b102a
SSDEEP

768:7HBn+plZ/RZaOW9JOc5ZyREURXv3fA+T2XAGSVM:7Bn+R5cz+jKefh+AvM

Score

5^/10

defense_evasion discovery privilege_escalation

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe

Drops file in Windows directory 2 IoCs

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

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
2720	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "b1f6dd0e743530ad2ed98e0d1b7387d1_JaffaCakes118.dll,1287935853,1563368310,-1814625877"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe
2720	rundll32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1296 wrote to memory of 1868	1296	rundll32.exe	30
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31
PID 1868 wrote to memory of 2720	1868	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1f6dd0e743530ad2ed98e0d1b7387d1_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1f6dd0e743530ad2ed98e0d1b7387d1_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 "C:\Windows\msvcr.dll",_RunAs@0
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Access Token Manipulation: Create Process with Token
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\msvcr.dll

Filesize
25KB

MD5
b1f6dd0e743530ad2ed98e0d1b7387d1

SHA1
2af8bb54b4fabbd567241e794dd2b7f82f2a9eb2

SHA256
e7e35d583a1ebe2a6663f4b11ba88b238fd65239a72e5d3a0b5ca57852c38de9

SHA512
63ad80e47e66acb451793e7a558b1218c5df0d18da88ce93342b23fb51834268b5dd468ac79684bcca147c8871419d9d6f9bd759c28b59db9f4dfaa34f2b102a

Download Submit
memory/1868-2-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/1868-4-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/1868-3-0x000000001001A000-0x000000001001B000-memory.dmp

Filesize
4KB

Download
memory/1868-1-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/1868-0-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/1868-9-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2720-8-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2720-10-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2720-14-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download