3a8e60d3d07c161e3dcde6c881bbf5030e03676812b2155d205b303bbd748168

Analysis

max time kernel
150s
max time network
160s
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, 19:27

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe
Size

46KB
MD5

405f6821f34bc545b8eb647c759dba10
SHA1

4dc0f3e50cb4e7f2a8cf13396d7d8ea1cc10215d
SHA256

3a8e60d3d07c161e3dcde6c881bbf5030e03676812b2155d205b303bbd748168
SHA512

cd0ff05665dcbf04deb12224382a1c7c84e99ea6d8f6f58a7dfc717145419bdca1bdfc2bdfc597f6b94eae3a2b296b7600885bb9d1f0fc360e88e33a49873ca9
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hSi:bgGYcA/53GAA6y37nbSi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0003000000022763-12.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	2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1960	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 4748 wrote to memory of 1960	4748	2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe	88
PID 4748 wrote to memory of 1960	4748	2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe	88
PID 4748 wrote to memory of 1960	4748	2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_405f6821f34bc545b8eb647c759dba10_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1960

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
46KB

MD5
04dbd739fba42860787de0b2cb4afef6

SHA1
9358cfc8759c1889e830f762a65c0ca5f2555a90

SHA256
7487575635fb5a5295313907a08839dd8e6a4c6bbc5b165428771f2bb73acfde

SHA512
1c5ec3e843cf7bfb6838ef4e61c82054eb960c08f65146f0e03866b18c671fb1f4da91378af021a230d5efb185eeb7b9f86be0d20d507cee44d91c238a6a0522

Download Submit
memory/1960-17-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/1960-19-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/4748-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/4748-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/4748-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download