bdf347797184a9fb6d464cd5febfdb1881ade33c5fcd19de4fe8874cbf2f2f06

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 01:27

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General

Target

2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe
Size

42KB
MD5

5081a9a24b2c70774f5f37413e2a4cf8
SHA1

398e08998e58269118f18afc3b03a46c66782499
SHA256

bdf347797184a9fb6d464cd5febfdb1881ade33c5fcd19de4fe8874cbf2f2f06
SHA512

420982372d8adacb4967bb2946507d152ecb137dece5d351ab9a4c2dbb554c306506ce6184cc28d3790c1bbac8f2ec7ed392b3c651e16853e70186320744f64d
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZWQpyW:btB9g/WItCSsAGjX7e9N0hunrknld

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
5032	gewos.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 4928 wrote to memory of 5032	4928	2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe	88
PID 4928 wrote to memory of 5032	4928	2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe	88
PID 4928 wrote to memory of 5032	4928	2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_5081a9a24b2c70774f5f37413e2a4cf8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:5032

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\gewos.exe

Filesize
43KB

MD5
b24f74e0a76659288e897fbaf8ea8e74

SHA1
2ac632a71bf922c47ab68c9e3a982ab53abd383f

SHA256
b4ce086e39531d3e2a1835dd6912955e0650faa75c92362bef5138a2c1a4829b

SHA512
25126f2910436719e6d6c105d92ae8038fea77ab8def32a2c3b3624c93f47b4d5434671ba0a13a87cc9c769cbd64131a447c167de676ea3105cb9e9487e33cf0

Download Submit
memory/4928-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4928-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4928-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5032-21-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download