90dd7566c2af846d99c69579cda732ee3b43471f08afd1b663e179a37dfdd5c8

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
23/04/2024, 03:33

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General

Target

2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe
Size

39KB
MD5

48b52379578f9fd87d30c7f574acf421
SHA1

068f0647df2ce1814ee237f90cf8fa6ab62c8b36
SHA256

90dd7566c2af846d99c69579cda732ee3b43471f08afd1b663e179a37dfdd5c8
SHA512

3abebea571f4d2be3de8b6cf94597f01014adfc5ca4736065fbbc24541d829dbec271347002ddd85dafeaedc4d85729321e22cf8c63887ba71420713926182d7
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT4Hmk:bA6YcA/X6G0W1BGk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2472	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 5000 wrote to memory of 2472	5000	2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe	86
PID 5000 wrote to memory of 2472	5000	2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe	86
PID 5000 wrote to memory of 2472	5000	2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_48b52379578f9fd87d30c7f574acf421_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2472

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
39KB

MD5
9bbb4c0049f8c6b004ce535dfaed46fc

SHA1
eec04729abc2e538a8e551dce55a6022b847e7e0

SHA256
36f7dbe2ac773de3f13ede2ccf5b0cc8300521120f4480bfb1931fb5cbf995ad

SHA512
885bc9e0c28283919c21a0c2c5213e246d1b7f1683f5ac440824f956ba9be9e515612a8b4ad5dfa03bd00f82c9bcf4eaedd46221e58bf0a721e26148e6ea51fb

Download Submit
memory/2472-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2472-19-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/5000-0-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/5000-1-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/5000-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download