d9298f07aac5622c157269d51694152eb01f4557d11629dcb0e694f38be6e4db

Analysis

max time kernel
93s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 07:48

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General

Target

fab0884d2195505ff7f09bd8d3722950_JaffaCakes118.dll
Size

711KB
MD5

fab0884d2195505ff7f09bd8d3722950
SHA1

f8d887f4c6a26d149b5a24f4b99cffa0da21b9e9
SHA256

d9298f07aac5622c157269d51694152eb01f4557d11629dcb0e694f38be6e4db
SHA512

49d702346b2ecd166096e7ad786e429c8030518b865d1e1889c24e2af463321e0f0caee021a949dc135872617644909c47e3fb66adf6b16b50612c2c8127c97a
SSDEEP

12288:hNIyZN4+Wv4PLq6Okrh9ZN/hs9DsdBPDn/WOGR:h9TPmirh9Zdh6m/WOI

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3740	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/0x0009000000023c7c-3.dat	upx
behavioral2/memory/3740-4-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral2/memory/3740-7-0x0000000000400000-0x000000000046C000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2708	2088	WerFault.exe	83
232	3740	WerFault.exe	84

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 2848 wrote to memory of 2088	2848	rundll32.exe	83
PID 2848 wrote to memory of 2088	2848	rundll32.exe	83
PID 2848 wrote to memory of 2088	2848	rundll32.exe	83
PID 2088 wrote to memory of 3740	2088	rundll32.exe	84
PID 2088 wrote to memory of 3740	2088	rundll32.exe	84
PID 2088 wrote to memory of 3740	2088	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fab0884d2195505ff7f09bd8d3722950_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fab0884d2195505ff7f09bd8d3722950_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3740
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 268
      4⤵
      Program crash
      PID:232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 608
    3⤵
    - Program crash
    PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2088 -ip 2088
1⤵
PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3740 -ip 3740
1⤵
PID:2540

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
125KB

MD5
8765eff9ced671b9fba53a55aacba014

SHA1
e15c775cc7004a736d6fc7aca09c5d80cf7ff3de

SHA256
18157bf099f2f7861621864b7d63cc92077f5c20e9637ccf50f1821c37fa482d

SHA512
9f46bf25cabdfbfca6805d2c22369f949a6048c833d037d413dece708cd12bab32e17a21d875437c488ab9e9b5487a1f3865d4bb1ad8cc2dad94d211c18590f4

Download Submit
memory/2088-1-0x0000000010000000-0x00000000100B8000-memory.dmp

Filesize
736KB

Download
memory/2088-8-0x0000000010000000-0x00000000100B8000-memory.dmp

Filesize
736KB

Download
memory/3740-4-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3740-6-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/3740-7-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download