0b22324fd0355d87a3c870cfa98bf0ec841438eab71dbfb7c523616c123aaed1

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2024, 19:41

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General

Target

2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe
Size

47KB
MD5

8f92830042dfd06742b9751646fd1650
SHA1

d4f10ef3220c8663cea7bb86d1baf23b25281bd8
SHA256

0b22324fd0355d87a3c870cfa98bf0ec841438eab71dbfb7c523616c123aaed1
SHA512

8345abb698e8ba42b1efcf40f06dcaa203f59a7a9a4d3d3da5305950ec292b0ba58fabf1738c5a7c2360d7e02fd1e1a08c26cc3e6498d8434417ef4ac34acc10
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6ddgI:bgGYcA/53GAA6y37Q6ddgI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
816	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 3148 wrote to memory of 816	3148	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	90
PID 3148 wrote to memory of 816	3148	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	90
PID 3148 wrote to memory of 816	3148	2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_8f92830042dfd06742b9751646fd1650_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:816

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
48KB

MD5
81da4c683e4029193927ac59bf9a215f

SHA1
a0e3a1835ac513b0d53b1adc712a458133752ea1

SHA256
25780245dcd0d0f1ea9aa651eea02d9dae7f3e18315897b1ad8f055d3d8ece50

SHA512
07d7cdf8dfe71dfec77930b8bcd9fa7c4cd06a65496f18723389bf152c5509c3fcaec7ed0714bdc78fd3e3896d5af3ca38c0c19532dae82ad912053c4a025c62

Download Submit
memory/816-17-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/816-18-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/3148-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3148-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3148-2-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download