01e9f48cf7231fb40bc63be8548e20af8dcb91143305352e5f190189d487aadc

Analysis

max time kernel
91s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 03:09

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe
Size

33KB
MD5

f83c9acd54a5af166f60f7854e133265
SHA1

3f7368d13e394fe5092824b7c23017ce2ce75602
SHA256

01e9f48cf7231fb40bc63be8548e20af8dcb91143305352e5f190189d487aadc
SHA512

3d1fd7fac09577a423efb22185d52219b3c8c6b72087d05512c4f0e9bcc03a76df0598e058e06ac24b1f7412a778c0cdfed65e4f6ec60cdeea1bc7e9fa34751d
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4x:fT+hsMQMOtEvwDpjoIHx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002321e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002321e-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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	2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1504	misid.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 4584 wrote to memory of 1504	4584	2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe	90
PID 4584 wrote to memory of 1504	4584	2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe	90
PID 4584 wrote to memory of 1504	4584	2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_f83c9acd54a5af166f60f7854e133265_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1504

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\misid.exe

Filesize
33KB

MD5
9ff3b4b6d750b6c6dc5f7fe88aaf232d

SHA1
415ad660b83ad7e34e042af84c8ecf155444c563

SHA256
69f83270c022903d00f3ff805fd43ec73988ae9c0739adf74db1d4fd02bd7c3d

SHA512
0fea4aa877718d46e54ec864c4441aef777cfc340c90b38f88fef16546a291b5b88faf5d8df464a45723d9d55344e8fe9b336dcf626015470a4b382f4aa54b34

Download Submit
memory/1504-18-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/1504-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4584-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4584-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4584-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download