33672666a53edab174939f0484c0cd59dc627ff56f8a2907412ba0b616e7a74a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 20:02

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General

Target

JaffaCakes118_60639c4af77fcf21bf20fbefb3142eec.dll
Size

234KB
MD5

60639c4af77fcf21bf20fbefb3142eec
SHA1

73dde4fc639c9ec2c42520abaa456e99ccb4badc
SHA256

33672666a53edab174939f0484c0cd59dc627ff56f8a2907412ba0b616e7a74a
SHA512

7c0c1555ab8dcf2c999f46f09091123bd3fe0da2d5971fe9c7280e53037cfa004185278a532380c0617dc1b6c3188b201432e0248ec1ff3a47458bfb69f287f5
SSDEEP

6144:aE1bwNNeYIJM1/9p3miMIUq4VVnlHicTMx2EPBCJ:ixhmiMtqCVlr+JCJ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4556	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2472-1-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/files/0x000c000000023b9a-4.dat	upx
behavioral2/memory/4556-5-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral2/memory/4556-7-0x0000000000400000-0x0000000000489000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3208	4556	WerFault.exe	83

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	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2472	1520	rundll32.exe	82
PID 1520 wrote to memory of 2472	1520	rundll32.exe	82
PID 1520 wrote to memory of 2472	1520	rundll32.exe	82
PID 2472 wrote to memory of 4556	2472	rundll32.exe	83
PID 2472 wrote to memory of 4556	2472	rundll32.exe	83
PID 2472 wrote to memory of 4556	2472	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60639c4af77fcf21bf20fbefb3142eec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60639c4af77fcf21bf20fbefb3142eec.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4556
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 472
      4⤵
      Program crash
      PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4556 -ip 4556
1⤵
PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\SysWOW64\rundll32mgr.exe

Filesize
204KB

MD5
053349d7ad422a413294766d79fc0b14

SHA1
b3bd239f6d8de5d82945d4063161b06ff932ac67

SHA256
2aae02cbc873fd41602e7f69427602d3c7062ad62bf0cdb64df3502cc372905c

SHA512
3f6ae5958dff78194f1a730db94603bd0d88aa9a33c8ffb62dbe3a1b583b86b638bc017b9cb2a2f368815e00750e12d80be287ac77f4a15afbb7603fee1c154e

Download Submit
memory/2472-1-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4556-5-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/4556-6-0x0000000000650000-0x0000000000653000-memory.dmp

Filesize
12KB

Download
memory/4556-7-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download