b7849f4389d339e30448f6fc6b7732faadadf0726fe376771d1abba2e95f0741

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 01:27

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General

Target

2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe
Size

47KB
MD5

13aa363aa3b7c2a561c02d8fcde146d0
SHA1

56611c7c23fc4d1f07903e363ecd5e3d512a6a66
SHA256

b7849f4389d339e30448f6fc6b7732faadadf0726fe376771d1abba2e95f0741
SHA512

9678b13965cf622a522aebceace10e0517b56fa600d88942f8e949587ebf6893d8aec4ab59a78bf3880b24e33753543f7755bc16f209b4c7ad92c69acc92c812
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUujKeMZA:vj+jsMQMOtEvwDpj5Hczer5ixjKeMK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013420-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013420-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2492	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1952	2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_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 1952 wrote to memory of 2492	1952	2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe	28
PID 1952 wrote to memory of 2492	1952	2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe	28
PID 1952 wrote to memory of 2492	1952	2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe	28
PID 1952 wrote to memory of 2492	1952	2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_13aa363aa3b7c2a561c02d8fcde146d0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2492

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
47KB

MD5
39e8307d208bbca8cfa9c14ac16eef8e

SHA1
648b380b92ba073b027acb94ec4a689ff74f2b09

SHA256
3a457896c8947df86b787460af7d501c0b5e07a5f8de90a6a9f2ce0f4b1a72eb

SHA512
a43e961f8a2e5bb9d3c782117bfae8e31c5bc2618cec4514e94649ca4372981ba14f3e19c3459c3c6bac47172404d6cd068819c8af6ec57b52d4666c7383e0ca

Download Submit
memory/1952-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1952-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1952-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2492-15-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2492-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download