bd58cb69f5385fbf3b1169f2f47ce211050514ef59c238c5725f644a7d708eb0

Analysis

max time kernel
163s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 15:34

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General

Target

2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe
Size

43KB
MD5

4abace7b7635992a18de94df62b790a6
SHA1

51de9d224de75666aa2e90d491e9ba67e8cb6bd3
SHA256

bd58cb69f5385fbf3b1169f2f47ce211050514ef59c238c5725f644a7d708eb0
SHA512

e5bb94062026cdfbe1f697a0dc29a1ecf4f641fa64a76df8c5f73565c86004ea9a805c67e61a09958e20fe43bc7890e2948b6c9657245b5404853d704b7f103e
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGu/:bc/y2lkF0+Bjrdu/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023203-12.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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4112	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 2168 wrote to memory of 4112	2168	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	92
PID 2168 wrote to memory of 4112	2168	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	92
PID 2168 wrote to memory of 4112	2168	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4112

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
a9f735c8e77e2c9808dd6e2e83a99f5c

SHA1
38603466f5c3cc70dda3527fe9eb8528920c340d

SHA256
f7b7e147c5eefb4e76e514d9f180f7cb96898e1745f1502084c9ca49ca1870bc

SHA512
52880f7164b188ae3ca8afcd72d28eea8121cbd0e73fafbc276888e6cf74d9104801c393a5c2052b08152a4c2f7c5b09a59a519814b0be8cb81908741dfcb038

Download Submit
memory/2168-0-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2168-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2168-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4112-21-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download