804ba1a79aea7aa0c17547585bacb7251e5663892ecd75faa5a1fced0168750f

Analysis

max time kernel
150s
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
20/05/2024, 21:02

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General

Target

2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe
Size

390KB
MD5

2d2fe3249c92146a61372ffd509bf8fe
SHA1

e8486ffef934aa2749eee47477828b826ae1fc96
SHA256

804ba1a79aea7aa0c17547585bacb7251e5663892ecd75faa5a1fced0168750f
SHA512

33ceeca26da9e331dc90183866ed5a2942cd2677d7a45597a8a35e62756c2962fea066de613d763a7f3795fa718552db26c1e4ee8bb5058510423f235bb6f357
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXM:nnOflT/ZFIjBz3xjTxynGUOUhXM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2104	hasfj.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 1572 wrote to memory of 2104	1572	2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe	85
PID 1572 wrote to memory of 2104	1572	2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe	85
PID 1572 wrote to memory of 2104	1572	2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_2d2fe3249c92146a61372ffd509bf8fe_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2104

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\hasfj.exe

Filesize
391KB

MD5
bb999a8486c5264cb3474575a2066d40

SHA1
2e340a11da1189ac589df1760693bc0d453faff2

SHA256
0a14da761a775d7cb66904d2214f97ff22698cf2b5075a5607e81312aa484b6a

SHA512
f5e81f854d6cd899a84279454b374015248d0834f2da11f7c97ab5ab91c892fd3fd347f3289c22035c50323fd6c0a4def477f6c819d0c37c87c2d408091cdb25

Download Submit
memory/1572-0-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/1572-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/1572-8-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/2104-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2104-23-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download