44abb9bc47cc6eaf574acf883a16afe9d07ecef8fcb6c1f0bb9099292d3493a5

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 17:58

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General

Target

2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe
Size

385KB
MD5

993ce01700b212fd5dfb6be25976d3be
SHA1

f4f04dc37cac40991ce97e0325c0315d1f000d86
SHA256

44abb9bc47cc6eaf574acf883a16afe9d07ecef8fcb6c1f0bb9099292d3493a5
SHA512

0e757fcaa0a4bad86eb4e7335ec038d093397897138b85aa5d1c031571a7d6b044e32daa632323bf42c9545b96e7a03eac150192f2f78e6b2cc775dad0ab2ded
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231fd-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1672	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 4336 wrote to memory of 1672	4336	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	85
PID 4336 wrote to memory of 1672	4336	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	85
PID 4336 wrote to memory of 1672	4336	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1672

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
385KB

MD5
8f286f1422d72e41f6bc7528aff0611e

SHA1
bfeb86ab045bacbffda1823a53b3444aa95003f5

SHA256
0bb57db8a098cc3180ef28a933d03b28ada3817673113ab74a021ee35ebe2987

SHA512
64b93c36b2200835995f1a64cc4f72d479c4b595c1a452fa29da133b09f02510a94888e016990ef3be43a235619cbe3594c85ed16a3e8d22dd71e37661fbdbf5

Download Submit
memory/1672-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1672-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4336-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4336-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4336-2-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download