d880979e02c30da14b7f111fc0c4df69ed01eb5b6370eec174c6315c77c5b85e

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 17:01

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General

Target

2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe
Size

46KB
MD5

673af832df874bc9cf2267d14d68573d
SHA1

b61e30d41277514910c60a73524e62e75e318228
SHA256

d880979e02c30da14b7f111fc0c4df69ed01eb5b6370eec174c6315c77c5b85e
SHA512

525fca80b1042ad215df49585d57a761ea92058562417e959dfe758b5fb86460f21ce8e9e7262909f78a9ab517a90346b9db5a8eb63682c837694a8f27a2b9ca
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws0:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ12

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x000600000002321e-13.dat	CryptoLocker_rule2
behavioral2/memory/3328-17-0x0000000000460000-0x0000000000470000-memory.dmp	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3328	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 3328	2484	2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe	84
PID 2484 wrote to memory of 3328	2484	2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe	84
PID 2484 wrote to memory of 3328	2484	2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_673af832df874bc9cf2267d14d68573d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\misid.exe

Filesize
46KB

MD5
6203795ce69dba3a990e1d63f8123568

SHA1
c8d59528553c1c46c116e0f46aab78a86b78d81d

SHA256
fb3593df61ff96d8e65bb3890a0fd937b0d6b89e49921e66e153b4ad01d03297

SHA512
a42d9ca69c1991a6164a1f8efd48f13815a9c6b73c1e7dfa163ca056e84f5e25c184680bd58f1c3a5d9347ebe41b80e0de0de7272cb83a4ed1d04da157bb78a6

Download Submit
memory/2484-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2484-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2484-3-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3328-17-0x0000000000460000-0x0000000000470000-memory.dmp

Filesize
64KB

Download
memory/3328-19-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3328-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3328-26-0x0000000000460000-0x0000000000470000-memory.dmp

Filesize
64KB

Download