7f8981d59103e0ebff39ab711b40b4735b4ad85049750f0ed4d43b43c4abda68

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 02:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe
Size

52KB
MD5

7605649b80373a05198314d80f696a55
SHA1

522b7db1a42c2ffe2d5ce6946cedd8b532529a03
SHA256

7f8981d59103e0ebff39ab711b40b4735b4ad85049750f0ed4d43b43c4abda68
SHA512

e57a3e52a96259d2e770842274f51362516276c5cc65e3368516bbedd995b2f03364b1ed4e7002833a157d313f2d06b340b73576a5a1ddc26538a9f735bb8c43
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJP:X6QFElP6n+gJBMOtEvwDpjBtE1yILJP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320c-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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4868	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 4344 wrote to memory of 4868	4344	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	88
PID 4344 wrote to memory of 4868	4344	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	88
PID 4344 wrote to memory of 4868	4344	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4868

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
53KB

MD5
80ff80c9312b2ded6d0fd1fec76a0518

SHA1
be2762aba6ae43a7dbd66d56f820b9d05bca380c

SHA256
c2864522cfef82ee682fbec2861c380898d23da11a9de1944f29e1bf7d46ecb7

SHA512
ac53bf7f38f15c192ca74fd3f06d7aa921e7bb3aef86d62e84bb9cf8ca1daaa70b89d5e8c4dbdfcc6fae5bc8abea1887cda4eb4be4748234a32c81b8a3e19255

Download Submit
memory/4344-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4344-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4344-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4868-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4868-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download