592ce759a5fdade85a70bf1b6316fea8027871cf11bc2b6387a52f9f77e9cf44

Analysis

max time kernel
149s
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
02-01-2025 09:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6422489923b78ecccb630388ad58fd79.dll
Size

196KB
MD5

6422489923b78ecccb630388ad58fd79
SHA1

77d7d8a0e29417f522bdca6749f71bfdb74f7d0e
SHA256

592ce759a5fdade85a70bf1b6316fea8027871cf11bc2b6387a52f9f77e9cf44
SHA512

ea007937cf35d645bb83ffb34783c982bb44eecc2520364c4a17e33e2d25efae06ce66d0a59f7914b69159a7954ab380dc2f775cea826f8140f6d46e914e9c7c
SSDEEP

3072:C61Ye3TaEu2CoCcn3zO7A4D8XLJ5UCorHW5jAyniq71q:PTa12CoCckAe8HTmC5b1

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3828	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023ba0-4.dat	upx
behavioral2/memory/3828-5-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/3828-7-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1724	3828	WerFault.exe	84
2924	380	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	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 380	868	rundll32.exe	83
PID 868 wrote to memory of 380	868	rundll32.exe	83
PID 868 wrote to memory of 380	868	rundll32.exe	83
PID 380 wrote to memory of 3828	380	rundll32.exe	84
PID 380 wrote to memory of 3828	380	rundll32.exe	84
PID 380 wrote to memory of 3828	380	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6422489923b78ecccb630388ad58fd79.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6422489923b78ecccb630388ad58fd79.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3828
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 268
      4⤵
      Program crash
      PID:1724
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 608
    3⤵
    - Program crash
    PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 380 -ip 380
1⤵
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3828 -ip 3828
1⤵
PID:3544

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\rundll32Srv.exe

Filesize
132KB

MD5
6fec536494eeea97fc0621c2aec09084

SHA1
99843c61609caf8fd3b7b16e9ec4ecb547acb5e5

SHA256
a49547f455bd52500bd4d6167d54e07d83951d655165b23e8483869dcaa18b49

SHA512
6d930159011d2edc1193ef53e76fb21b884173c1f6eee24a5e8924fbebd2306d183c0010de1a00e372aca193e4407fa922fe0542f47678cae65f4f8aca96d310

Download Submit
memory/380-1-0x000000006D100000-0x000000006D131000-memory.dmp

Filesize
196KB

Download
memory/380-8-0x000000006D100000-0x000000006D131000-memory.dmp

Filesize
196KB

Download
memory/3828-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3828-6-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/3828-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download