aabfc63be0deac58ecc1c10cb49275b09d194380af055e471c037e3a59f5bf14

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 09:38

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General

Target

2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe
Size

72KB
MD5

5fe4a0bd6d55d8ee3e1f49d5746168f3
SHA1

8fbf0bca08f03d1382f57327b5cd347300f3d85c
SHA256

aabfc63be0deac58ecc1c10cb49275b09d194380af055e471c037e3a59f5bf14
SHA512

2372b58e4a115dab7df3a38803c9981127b4e782eacd70c216a81df7277d9d461f69c40729344bcbb755372ea93cf1bd1e1576d375d4df2256955bf6201837e2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsw:X6a+SOtEvwDpjBZYvQd2v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_set1

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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2012	asih.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 4984 wrote to memory of 2012	4984	2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe	88
PID 4984 wrote to memory of 2012	4984	2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe	88
PID 4984 wrote to memory of 2012	4984	2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_5fe4a0bd6d55d8ee3e1f49d5746168f3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2012

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\asih.exe

Filesize
72KB

MD5
47f168fc95294d397f53ea1609bf1816

SHA1
d3b1b1d25a08e05084f4bdbcc8508c0aae4de806

SHA256
bce3b300e808025adc423dbe924ba2462dd98ecd1e34bf7c8f18d50c3f3333b0

SHA512
0a486155386c29a0337e3d8ab6310a72c3c68ec3858242887628d33a4da8c98907830357a7b2bcdf2210613a1ca4fbedb9502bbdbba9504d66bf55a5ec78bb34

Download Submit
memory/2012-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/2012-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4984-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/4984-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/4984-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download