d9f80051dde33591acc4bda57fc01343e0573c68a710270448e4588e4b22d9ef

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 08:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_78c4be796899116edcbf71bf34dd5130.dll
Size

196KB
MD5

78c4be796899116edcbf71bf34dd5130
SHA1

c7b9ef0f73545895558fe01c68217d1acd53921f
SHA256

d9f80051dde33591acc4bda57fc01343e0573c68a710270448e4588e4b22d9ef
SHA512

67ca34b76b671793df5d3a66305723e4fc00240ca6190eaaf4f7d53a0fe838981db339cdaf60691b45801dbbd7a48045de954089fbe9bb555af72bbeca980761
SSDEEP

6144:D+fD/0QSzItKOgGFYjQPWrwkWkCPb9o/0nb:D+fzgItmjQPFkWnb6Eb

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
720	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bcd-3.dat	upx
behavioral2/memory/720-5-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4544	720	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 4912 wrote to memory of 4568	4912	rundll32.exe	82
PID 4912 wrote to memory of 4568	4912	rundll32.exe	82
PID 4912 wrote to memory of 4568	4912	rundll32.exe	82
PID 4568 wrote to memory of 720	4568	rundll32.exe	83
PID 4568 wrote to memory of 720	4568	rundll32.exe	83
PID 4568 wrote to memory of 720	4568	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78c4be796899116edcbf71bf34dd5130.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78c4be796899116edcbf71bf34dd5130.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4568
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:720
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 264
      4⤵
      Program crash
      PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 720 -ip 720
1⤵
PID:2508

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
27761550031391c56a3a59d3cb7229a5

SHA1
643e456a5fb02a820e79e33fc66e8496f15e5955

SHA256
b6b449ecd550692a3d8d5424e00885155e898d5cbbde98543a5b7b877073daab

SHA512
2aa9607f71e4cb99ab4ccabe33a5f192117b733306cd8d1f4f3054077572e522bc71e1eae679877b5554d0bc3c1281fd5bcf822a2da5da291e6630f65470d0d6

Download Submit
memory/720-6-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/720-5-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4568-0-0x0000000010000000-0x0000000010031000-memory.dmp

Filesize
196KB

Download