26db98ebae10f0bd20b3717ca495bfef41b94c6d2b50a29115a2c94331d9177a

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
21-01-2025 10:30

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General

Target

JaffaCakes118_03ec10929b76bbaf5a0ceb3f0dc6e169.dll
Size

758KB
MD5

03ec10929b76bbaf5a0ceb3f0dc6e169
SHA1

2f335ec0b1c58607bfceee35de8ed964672b5d74
SHA256

26db98ebae10f0bd20b3717ca495bfef41b94c6d2b50a29115a2c94331d9177a
SHA512

3d87b25dd8f83a361cd97bd53465b544b65e7a437a76a619d6bf54a6a7108b8b3591ba4022d84246bdff7886a3ab0509b4876e5e34c400c0f835a3a50bf25dcd
SSDEEP

12288:/zb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwPK3p9zro4AF:/zb1MlCKUQyUmjtczu6Prs9pgWoopooq

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
628	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/0x000c000000023b30-3.dat	upx
behavioral2/memory/628-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/628-7-0x0000000000400000-0x0000000000454000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3496	628	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 2256	1404	rundll32.exe	83
PID 1404 wrote to memory of 2256	1404	rundll32.exe	83
PID 1404 wrote to memory of 2256	1404	rundll32.exe	83
PID 2256 wrote to memory of 628	2256	rundll32.exe	84
PID 2256 wrote to memory of 628	2256	rundll32.exe	84
PID 2256 wrote to memory of 628	2256	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ec10929b76bbaf5a0ceb3f0dc6e169.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03ec10929b76bbaf5a0ceb3f0dc6e169.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    PID:628
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 628 -s 260
      4⤵
      Program crash
      PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 628 -ip 628
1⤵
PID:4420

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

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
99KB

MD5
f57eee1185dee33198b752dd1f66ad55

SHA1
b60f88d65f8805bf2ca095ecd1727b15eed4ff12

SHA256
6bb93bea58d84b9c6a562a6b888ec84ba0ecb7575b6c8f3264a9e9fb44ee37f7

SHA512
cd97a2207d7ad6178cc7c9fb13fda7015bc30a924aa43b6e8ba07961ef878a841e6d025047a35e3b60ef23a3ab9b59b16d1abe09f39dc0cd6e5515d46630ad40

Download Submit
memory/628-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/628-6-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/628-7-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2256-0-0x0000000005000000-0x00000000050C3000-memory.dmp

Filesize
780KB

Download