2389b70d2b2c01f80be8fd19c25f7e0a041394a63c52ddbe36790bd6410c7a3d

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 09:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe
Size

98KB
MD5

58c090af035fe4d61f1c2d4d5cea0720
SHA1

85a422b278edccd51923ee1a55584641bbf469b1
SHA256

2389b70d2b2c01f80be8fd19c25f7e0a041394a63c52ddbe36790bd6410c7a3d
SHA512

feeb33a91147399aec721be58e304f0dc2ac346f884a30a7809aa27d7dd6f2d2c11e32a297506903eeaf4b7ffd6e3618d77dc1f9ef981a251c1f22d5fb9a8903
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbZ:V6a+pOtEvwDpjtzp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-12.dat	CryptoLocker_set1

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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3460	asih.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 1720 wrote to memory of 3460	1720	2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe	89
PID 1720 wrote to memory of 3460	1720	2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe	89
PID 1720 wrote to memory of 3460	1720	2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_58c090af035fe4d61f1c2d4d5cea0720_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3460

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\asih.exe

Filesize
98KB

MD5
0f1ac78173305c3cac3ae0bc0bcd90ee

SHA1
56f8bd595fa6c4bc7810bd072f6579d1af796de5

SHA256
323b13af4012c530842405e19bfcffa27ff6bfa100cb9e1427c878cd95090dd0

SHA512
be2541b47f04a61b9a6a94c6b2d25a5c6a6adb3721d36cc9018e95b40bda2368629541f6ed6795927ad7d5a65fcb8592d0cda3e9a358e46ba4131c2f70e26bdf

Download Submit
memory/1720-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3460-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3460-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download