4464116caef6ed71e0756a8dffa8326a95c8a36145f2d34b03206d39bfe07840

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 00:29

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General

Target

2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe
Size

77KB
MD5

a7bd4e0b80698d83c21dbb347770b0be
SHA1

29a1a8ff8dfbc838eda07938581ed1e06def650b
SHA256

4464116caef6ed71e0756a8dffa8326a95c8a36145f2d34b03206d39bfe07840
SHA512

c6bccd895805950858e4026b61417c643f4042184c1f3b050b8196517e9bbb79fd6555944791e930c674a52d7164b9c3f82eb9bba9e58c4eac7fca3e4f77b219
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1sim:X6a+SOtEvwDpjBZYvQd2A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002329a-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002329a-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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4604	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 1384 wrote to memory of 4604	1384	2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe	81
PID 1384 wrote to memory of 4604	1384	2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe	81
PID 1384 wrote to memory of 4604	1384	2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_a7bd4e0b80698d83c21dbb347770b0be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4604

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
77KB

MD5
b95e5cd86eb908afe541a5d909bf38e7

SHA1
3fd4e464fc5431f6fc23cea0659746edc1876983

SHA256
d75537283b26bcd0a13762393c40d2e957617ccb832ad1bac0ee71537a22017a

SHA512
ae66a2679a1ea49464f25e24312e7fd1ee0d420665909e85691524403b138125d58a058b31dbe6f394db53a3f16e7e66c35acaa7da76a1b41122213cfb32b2e8

Download Submit
memory/1384-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1384-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1384-8-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4604-17-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4604-23-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download