f51f3587cd163406aee14ed1e6f1a33e5e452963dbfbf2c0ee35a4cf874ef53d

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 17:36

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General

Target

2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe
Size

33KB
MD5

38525e60b60fbd1cdaa46df67763e338
SHA1

f6ab7e1d3fbe90cfc2e54be789bb20ff718d61a6
SHA256

f51f3587cd163406aee14ed1e6f1a33e5e452963dbfbf2c0ee35a4cf874ef53d
SHA512

2f998a19a7bec80c4d1bc454ec6255d6fc795bb4e95d261b436fd0d31bc245b07f77b4349f3f667fb2e12d9e2aac132ae8a7860cfe986f51ab76c578bb37a8b0
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SE90:bA74zYcgT/Ekd0ryfjQRSNhpSV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002324a-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1584	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 1424 wrote to memory of 1584	1424	2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe	85
PID 1424 wrote to memory of 1584	1424	2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe	85
PID 1424 wrote to memory of 1584	1424	2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_38525e60b60fbd1cdaa46df67763e338_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1584

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
33KB

MD5
c3c14d88eb65044fa0187f6d32e50a2a

SHA1
2decda0a4bf6298d695fc0a95c2c8128424c86ca

SHA256
84d5db44cf0ab1d60a10d31f369e7cba754fe814a2fca96e68a4e204a875b719

SHA512
cb1bbfb0c892cc6a7c20e3eb9dba01f3b36252950e0e386a2487ae3ef694f6803434caf85f65b33c3ae45fd0768bdec0b3dcb577a456d12db529071a1b834315

Download Submit
memory/1424-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1424-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1424-2-0x00000000023C0000-0x00000000023C6000-memory.dmp

Filesize
24KB

Download
memory/1584-17-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/1584-18-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download