f3467650d5d35bede71c9f37cda60a06d02197cf01eeb620091b847f4a45fb08

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 10:53

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General

Target

2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe
Size

42KB
MD5

abd14bdfcf073604c449bbc226a309b1
SHA1

f9124be2cf0db37e31051cc5719b8c84ab0ba55d
SHA256

f3467650d5d35bede71c9f37cda60a06d02197cf01eeb620091b847f4a45fb08
SHA512

f856d1490e4136d9117d00f33461c67224b03fcd7185052ad647ba3ac8b89fdd5f4938171da6a4b64d5941642004afc3e7ba142a614184b61d5e16980eeeb8eb
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGuT:bc/y2lkF0+BjrduT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023200-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2652	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 3300 wrote to memory of 2652	3300	2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe	89
PID 3300 wrote to memory of 2652	3300	2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe	89
PID 3300 wrote to memory of 2652	3300	2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_abd14bdfcf073604c449bbc226a309b1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2652

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\rewok.exe

Filesize
43KB

MD5
68415a8791c176dfae9aa427583855be

SHA1
7de1726a4ebeca3417a8561680d18b49c8e70de4

SHA256
cf8ab9367a9100e194e5d5ae8b89f8b48ee5b15ba2e57901088541d6e90c2b98

SHA512
614b5ff448e08fca69289084adc84cefcfdf2fa204efb50620515ea834d5c024b6cc00c21daa0237d373f1943777d4217dd95f623e5f1cd074590662f972677a

Download Submit
memory/2652-20-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/3300-0-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3300-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3300-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download