f0fd4957cd45f766244bac22e0571c4cc155360ee2a476657c1bcb811df50043

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/06/2024, 08:25

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General

Target

2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe
Size

46KB
MD5

5d5008fe06603752e27c93cf7860d982
SHA1

34884431a600f265806ef8b23b7929f4227ebf9f
SHA256

f0fd4957cd45f766244bac22e0571c4cc155360ee2a476657c1bcb811df50043
SHA512

b3b344d42a9bcd1bead4e80093aee84ac11b3b16fa388c00c4aea203e4e93dce34d2c3a61d259eb345f8e33428c70ca80b919958f10b6e3e95fdce36072ded00
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqc:bc/y2lkF0+Beqc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	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 5040 wrote to memory of 3016	5040	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	83
PID 5040 wrote to memory of 3016	5040	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	83
PID 5040 wrote to memory of 3016	5040	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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
46KB

MD5
dd9c1eeb1f7372723c756eb26493d22a

SHA1
e6081ccd907579531fa59023071e37ce3a128a9a

SHA256
2abbe100b3c0068eb3ca3ceba3319d9a1197d41652279ff291f0a8022166c0f4

SHA512
14874d328289383860016643ab6e690dfb7d9ed9fe6f835b65fb438f4dba6121ff4506a173b215e7d4be495c568c34e8e35a1e360a2cf1e18addcdd410886d25

Download Submit
memory/3016-25-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/5040-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5040-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5040-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download