0b696bbab11d388e64ac725eefaf902388c366d0e16e831adb7fa94df04578b5

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 03:27

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General

Target

JaffaCakes118_029cbc64802dae15d6ded5e295a7e323.dll
Size

359KB
MD5

029cbc64802dae15d6ded5e295a7e323
SHA1

d68e2006c01b08bc8f6cd9ee3d40077ab94959c1
SHA256

0b696bbab11d388e64ac725eefaf902388c366d0e16e831adb7fa94df04578b5
SHA512

8dbbbc50725909108b199b9e4ef996b68c8e2ccc3caaa85bacb71fd7f4c3934268e045d9b13eccb36bdceda4c802a1775aafea332f1096e1de8cf6e28caee450
SSDEEP

3072:EOBOLWXivHYMzv2HvP5YeBTEEP2831Vr/rF8QOSta7WeKwkB5fK4MmC896KA3wc+:EOp8HpzdQOStKpkB5fMZ2lJ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3588	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d000000023bb2-4.dat	upx
behavioral2/memory/3588-5-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral2/memory/3588-7-0x0000000000400000-0x0000000000498000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5012	3588	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 4196 wrote to memory of 4304	4196	rundll32.exe	82
PID 4196 wrote to memory of 4304	4196	rundll32.exe	82
PID 4196 wrote to memory of 4304	4196	rundll32.exe	82
PID 4304 wrote to memory of 3588	4304	rundll32.exe	83
PID 4304 wrote to memory of 3588	4304	rundll32.exe	83
PID 4304 wrote to memory of 3588	4304	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_029cbc64802dae15d6ded5e295a7e323.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_029cbc64802dae15d6ded5e295a7e323.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3588
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 264
      4⤵
      Program crash
      PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3588 -ip 3588
1⤵
PID:4780

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
260KB

MD5
38d0789db4ebd651202667a393edda52

SHA1
93345be068c4cee6f41f0dd01460161224e1290a

SHA256
1c90372a12e36fd370126700cf4e222f33044ca406e88925952a236147ceda61

SHA512
91431aaac4bcc3ab3f3d68f3da7a54e9b880f245a4e4ffb573351fd5d74c6894025c373c57eebff50ffccd3aa09d4416ed20bdf8d8e4c6c309746fd7940f4dd1

Download Submit
memory/3588-6-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/3588-5-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/3588-7-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/4304-0-0x0000000007000000-0x000000000705C000-memory.dmp

Filesize
368KB

Download