e794f0abeddf5484c22f803a2f63ac9b7ef7e6ccee4800caf4ffb6a371840bc7

Analysis

max time kernel
150s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 22:24

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General

Target

2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe
Size

44KB
MD5

0874407101ab2754170e26c7cb84b21c
SHA1

c21655ceeeb9ea875503ddf15c45ba701ead5873
SHA256

e794f0abeddf5484c22f803a2f63ac9b7ef7e6ccee4800caf4ffb6a371840bc7
SHA512

0d378e90120156cf67ef8c74a11edfc74b87ef8a2746755a8bdd97f78d5a0641f93afe038ebb01f0927217e6cbdde91c64146e79f298b118e262acb24f1c0cd2
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dhV:bgGYcA/53GAA6y37Q6dz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4716	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 2876 wrote to memory of 4716	2876	2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe	88
PID 2876 wrote to memory of 4716	2876	2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe	88
PID 2876 wrote to memory of 4716	2876	2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_0874407101ab2754170e26c7cb84b21c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4716

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
45KB

MD5
ed7423c0a4bf1711bb58e830a3746992

SHA1
f20804b4baf849ae9f40d2ac4867eda3558eeaeb

SHA256
3fb3f0dc8b688d1d76133b634ea962da5fe63340b4102774a1354f05f00472aa

SHA512
6d662b903936b4df137cb480c58936f79ede00bf9c531cc2fbc8eb1bb22d38879ef3dd193156241b41e96a6ed8b3d7375a29dca7fab5c264e46a20e61f0c2f77

Download Submit
memory/2876-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2876-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4716-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4716-22-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download