92944b0fd4d591a5693cb94b56c308516cde46b6d12f8153a426686e842a7e9e

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 02:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe
Size

34KB
MD5

dfae6b6435661a4c47ebf06e65f23fd9
SHA1

10e9cecd3e80d3ae40790c439baa9f4b901d040c
SHA256

92944b0fd4d591a5693cb94b56c308516cde46b6d12f8153a426686e842a7e9e
SHA512

28a83cc7e511a0c880b7a73359289c4a8b1d1bebd95576eb09061d543169fa4efefe44b91f642a1e0039f775de39c93cd07f027d4eadf389f21a330349d66de2
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RwFteWcn:b7o/2n1TCraU6GD1a4Xt9bRwWH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023211-12.dat	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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2436	rewok.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 1116 wrote to memory of 2436	1116	2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe	85
PID 1116 wrote to memory of 2436	1116	2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe	85
PID 1116 wrote to memory of 2436	1116	2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_dfae6b6435661a4c47ebf06e65f23fd9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2436

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
34KB

MD5
1f5ecc41a18324f9345e91f53e28c9f5

SHA1
1387767bd275e4c87afa134378415ccaae95a99b

SHA256
8d2eab8ac0d3f264aee5ee2d44cc5cefda258430aad49416bd16820b58434e51

SHA512
5a6bedf392b5fe616569cd460253d813a86fc4d6ab2ccbab6180d0e886b4b21c0361179d5b9faa1f7faf565e6bbe8a21674657ec9db657853ba671443d82b9c4

Download Submit
memory/1116-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1116-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1116-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2436-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download