9c102dd85e165bf8b1053a0d89dd1d248177000a0859d96310f7e0d352273ed0

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 04:41

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General

Target

2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe
Size

39KB
MD5

207c6dffaf7f501f67ebd97e299f510b
SHA1

b2587b29048720a4200425bc3ea7e69365319bc6
SHA256

9c102dd85e165bf8b1053a0d89dd1d248177000a0859d96310f7e0d352273ed0
SHA512

e2531ca935471666f695423b4f7e8c2c331f30a6469f4b29033defaee7c92b471ee7f91c9c25fefb203d8a4f89695af63da9cd7a2b5716e598e1f6d3e5b3d38b
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36m66:bc/y2lLRU6zA6q66

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023416-12.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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2924	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 4528 wrote to memory of 2924	4528	2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe	81
PID 4528 wrote to memory of 2924	4528	2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe	81
PID 4528 wrote to memory of 2924	4528	2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
39KB

MD5
4b8ce0d238df67b2d7577d36b7cd9e3c

SHA1
55326f2df686a80a84419eb7adc60b1b970048d9

SHA256
72d553f2be825f4b137d4814c5f2be01bd96c26a2edd770676c3ffe2170d3e00

SHA512
819a371be8fcee5931ee78552b712077bd0b4eb8de9b7d1cd388f03389e6102e5a1b95ad5ef7335a7a806fba15ea3b287ce11c79a9ea4bd5d3a1232f30f1b7de

Download Submit
memory/2924-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4528-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4528-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4528-8-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download