145633926f053d37dc5d7d555d444d310e10cbf298f589457a2bcca5eb196860

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 01:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe
Size

30KB
MD5

1f70d10feb59a8aa2412c852bdc3deea
SHA1

e63d0494f6b086aac1623af56794e7b8daa1098f
SHA256

145633926f053d37dc5d7d555d444d310e10cbf298f589457a2bcca5eb196860
SHA512

b54cd3b4fce2b88fddc5a40bfe0d06ef123479588b84593db0a73e1380097ca77df545f425daf9c03af0d27ad9e8e2a9756b96ab2af8dc3bd1977f0cf6e8d1c9
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9RXmo:b7o/2n1TCraU6GD1a4Xt9Rt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4060	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 752 wrote to memory of 4060	752	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	85
PID 752 wrote to memory of 4060	752	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	85
PID 752 wrote to memory of 4060	752	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4060

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
31KB

MD5
dad86d97a4aeb071d22236697db36c05

SHA1
4f618dc4b8a609918d2f7bb320d94ae49aa6183f

SHA256
00c02b2f8cb57678c511a7266514db0b42a85e84df47d1634b1ac7f6120b2bea

SHA512
03dde01a72f640d1f31557c6600e18c3be0bda35f1b5cfcc2b4d0a334d401009f643954e58d3ac30b73bdd934091ca967a2b42fdfd948d4fb957d480d1008a00

Download Submit
memory/752-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/752-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/752-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download