b267a192c17927c80a978078266ec9a750aba96dc90da00aaa6e1a2739493d41

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2024 09:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe
Size

38KB
MD5

88bce15fa9c1b4c365a7b6f2bf212339
SHA1

f132e67c4c41972e7b65a8074fa8adc6d143dd8c
SHA256

b267a192c17927c80a978078266ec9a750aba96dc90da00aaa6e1a2739493d41
SHA512

afb50ca69399242abf1e8a3bd56c731bf39e7d25ddf6444faa432b36fc30e14e6afa5c40c9880a66a2f0e357d63b8b4584eeec76535d3cbe172a3cd5b73cda99
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZ95d9hT1z:bgX4zYcgTEu6QOaryfjqDDw3sCu529h9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002323b-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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	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 4688 wrote to memory of 2948	4688	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	88
PID 4688 wrote to memory of 2948	4688	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	88
PID 4688 wrote to memory of 2948	4688	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2948

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
38KB

MD5
1214c39b6ed8d147f0d2fba9a35e86b9

SHA1
1e63a3e6fa075a12e8efdfcd08b65c8c1231c257

SHA256
f9cf3b9e3fd38d5a2890170ad57594ff4b7249975911f7c9ad37dc529678a365

SHA512
3460856ee3a0b836bcc8535e47a242e6c904bf3d53569df76e13ea3059d52d18a1cdc8adc718d443184691103fe94dd0955728abaa3f8adfe060208b4a44891a

Download Submit
memory/2948-17-0x00000000026D0000-0x00000000026D6000-memory.dmp

Filesize
24KB

Download
memory/2948-22-0x00000000026A0000-0x00000000026A6000-memory.dmp

Filesize
24KB

Download
memory/4688-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4688-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4688-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download