81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8

Analysis

max time kernel
151s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 03:06

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General

Target

81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe
Size

2.5MB
MD5

e03b309460f197de3b267757b8f7340b
SHA1

194b75c7a80315db3a7d41b2f9c31d53bfb5b774
SHA256

81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8
SHA512

7aadba5a701bea1057d7545e8e0557a806e09c2a92932ded1acc72630c4c82b2c63b61d45c6269771926730729dc5d11c9e378d55e5efd2a94109235c43762f7
SSDEEP

49152:EGM4GOrnHwDQSkRfYNjX5+nCi1a67GV+d4L28hUZzqmZxPHvLm48fXW:RDGnkRWN+Ci067DeL2iUZz9ZdvyjfXW

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5084	1456	WerFault.exe	81
4932	1456	WerFault.exe	81

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe
1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe
1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe
1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 5084	1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe	88
PID 1456 wrote to memory of 5084	1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe	88
PID 1456 wrote to memory of 5084	1456	81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe	88

C:\Users\Admin\AppData\Local\Temp\81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe
"C:\Users\Admin\AppData\Local\Temp\81e25cbec1be07bb69b70545a7b95afa4db090b7edddaf2fc8320b050d6659a8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 1288
  2⤵
  - Program crash
  PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 1288
  2⤵
  - Program crash
  PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1456 -ip 1456
1⤵
PID:3564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1127231943373\LZMA.dll

Filesize
67KB

MD5
d0f2416807f04c559e6394a0a4c7f1d1

SHA1
7df43ffa3716156d282b1e37d12dd1122f0a762c

SHA256
0fe6a869cf220769a058f8d281f272ef72669e3587673e52b53f3f9650dcf1fc

SHA512
8199c967ad813216f2ef3094a7614c9ccc95d35a817fc685cb7823f36cc97f0279bddd0ec0bb8f07ee2445476aaea35548516841ee9cde53a8be395515457799

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