6500a7c28b411c2b7de90574fed94f4b515e34a8cebe2210db7767334aca9927

Analysis

max time kernel
150s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2024 13:49

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General

Target

c0e05c4b6ac9f09822f065b255b39303_JaffaCakes118.dll
Size

25KB
MD5

c0e05c4b6ac9f09822f065b255b39303
SHA1

08b14b7551fa95431c80b41c686846e6a1e7644c
SHA256

6500a7c28b411c2b7de90574fed94f4b515e34a8cebe2210db7767334aca9927
SHA512

71919ae8a690ea671935df1918711ae2e5bb1aa8f797b297a00f8d8f70a32fad4c4ba3821f7505d8736ea92f4455d333b97d35d7abb465f24743596a919d0e69
SSDEEP

768:BrHFI0/T/ltj9LEPgf2cTeXsulEt8f30MFseM:9HFJ3pLPf2qeXsoFFM

Score

7^/10

defense_evasion discovery privilege_escalation

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4896	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
4896	rundll32.exe
4896	rundll32.exe
4896	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
4896	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} = "c0e05c4b6ac9f09822f065b255b39303_JaffaCakes118.dll,1285097749,1563368310,-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
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 4520	1136	rundll32.exe	86
PID 1136 wrote to memory of 4520	1136	rundll32.exe	86
PID 1136 wrote to memory of 4520	1136	rundll32.exe	86
PID 4520 wrote to memory of 4896	4520	rundll32.exe	87
PID 4520 wrote to memory of 4896	4520	rundll32.exe	87
PID 4520 wrote to memory of 4896	4520	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0e05c4b6ac9f09822f065b255b39303_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0e05c4b6ac9f09822f065b255b39303_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4520
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 "C:\Windows\msvcr.dll",_RunAs@0
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Access Token Manipulation: Create Process with Token
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4896

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
c0e05c4b6ac9f09822f065b255b39303

SHA1
08b14b7551fa95431c80b41c686846e6a1e7644c

SHA256
6500a7c28b411c2b7de90574fed94f4b515e34a8cebe2210db7767334aca9927

SHA512
71919ae8a690ea671935df1918711ae2e5bb1aa8f797b297a00f8d8f70a32fad4c4ba3821f7505d8736ea92f4455d333b97d35d7abb465f24743596a919d0e69

Download Submit
memory/4520-0-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4520-6-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4896-5-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4896-7-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download