494dd97d46f7c8ec68b756c23529c84f0920c6b9fdc6218d1b6990d22ac883c6

Analysis

max time kernel
150s
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
26/03/2024, 02:24

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General

Target

2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe
Size

34KB
MD5

031f4da07ee5c365cc8fdcfb543075c2
SHA1

294c0c524c23f0fd1722e61ff2142a7b9987adfb
SHA256

494dd97d46f7c8ec68b756c23529c84f0920c6b9fdc6218d1b6990d22ac883c6
SHA512

ef9b3189d1064061e06b07fbc43e55d40cdce91492de16dea3d32f8fdd645db49dfef51a3670819b0454478fd9d5afc2d7d9c0613ca56883090a3a01c5145631
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SEMMG:bA74zYcgT/Ekd0ryfjQRSNhpSFr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023211-12.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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2968	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 3452 wrote to memory of 2968	3452	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	89
PID 3452 wrote to memory of 2968	3452	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	89
PID 3452 wrote to memory of 2968	3452	2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_031f4da07ee5c365cc8fdcfb543075c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2968

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
35KB

MD5
55e686695ac6e2ceac185d6c9351041a

SHA1
41d34cf30369e09e17d8af6f2b2986b705340c68

SHA256
e0bbdd2d617669b2415b14a2606a33a0dea76e7ea55c18687d05ea4b844647c6

SHA512
9b7aae2988a5c5977952719fcd44ab5d8e730807e8785793593055ca0bba978d2e1d250a97649de49fea4c945be77d765178ecd9ace82d647a20e55240397c96

Download Submit
memory/2968-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2968-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3452-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3452-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3452-2-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download