3796b5893e7daa37f9a98ef05b037af9a0e4fd5573de66d6e4fecc7bbb67b20d

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 04:33

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General

Target

2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe
Size

74KB
MD5

41ca36029ab654bfefc6b21e42d191f8
SHA1

810f8096b465c406c92e471aef779cc25af38a30
SHA256

3796b5893e7daa37f9a98ef05b037af9a0e4fd5573de66d6e4fecc7bbb67b20d
SHA512

76a7a7d700e81242f8143fb80b9eceeb4b4c2ecd961100dd4b11f6786ed64a650f073ba36f5f80cfbe386dbdefbe389fc8e681c71f0792793c21499d0fcc6206
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUo:ZVxkGOtEvwDpjcas

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2308	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2308	2524	2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe	28
PID 2524 wrote to memory of 2308	2524	2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe	28
PID 2524 wrote to memory of 2308	2524	2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe	28
PID 2524 wrote to memory of 2308	2524	2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_41ca36029ab654bfefc6b21e42d191f8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
74KB

MD5
225954303114cd3ce1eb6d245d5e2000

SHA1
786110191d4756011e5568e50179256f65d77bea

SHA256
e39eedbf110017bb44368ecb1389691863fac97dd5e8144eaac25ccad335012f

SHA512
e05699db647ed868c56e688419275f6028e0c3e12739beed909ac0a751f6f9698e6ff6c9ed3f071306096a5587216ce0a566da90720aa4d6814ee830a2b35fd4

Download Submit
memory/2308-16-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2308-18-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2308-24-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2524-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2524-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2524-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2524-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download