b06cb83aa8561b0011d285fe4434f781061c087136bc07edcc213a955b34bf18

Analysis

max time kernel
167s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 22:45

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General

Target

2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe
Size

386KB
MD5

f7aea1de33eb681d4c6aa017235acce7
SHA1

0e64c899e058afbd50f6f66e3ace5cd2e847433a
SHA256

b06cb83aa8561b0011d285fe4434f781061c087136bc07edcc213a955b34bf18
SHA512

ed55fc37dd1b80b4dcb7773d35b4b9da22f7b2522427cbafec146beed6ffc9980020af0065c8b92da18fff3141bd2da6249932c75a9d7176be6375f2535d73b2
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXv:nnOflT/ZFIjBz3xjTxynGUOUhXv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320d-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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	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 1764 wrote to memory of 2708	1764	2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe	91
PID 1764 wrote to memory of 2708	1764	2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe	91
PID 1764 wrote to memory of 2708	1764	2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_f7aea1de33eb681d4c6aa017235acce7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

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
386KB

MD5
fed872367b33e8d0cf0b43675237e562

SHA1
2983226d15d3400eae3573d79be5e4e1619d24ab

SHA256
db0c9bdf95f0ed7e5986c4944fab2b787d2fcd3974902411b3583928bdcbbebf

SHA512
dd6260f7365dcc582a401cef107332f3871b207d94061a39ed26d14f427f60bddc276baa54adaee8c1487a54b630df495e780bb3c38bec6caed76390b0d2c583

Download Submit
memory/1764-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1764-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1764-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2708-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/2708-19-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download