076132b55bbfbade6e2461dc15026ddc8464a5f74581867d05c9b7e5562dab7f

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 05:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe
Size

59KB
MD5

99834b6fdcd52feef90ee120beaae3f1
SHA1

26c825451185b5ce566b77d1f2b0b64f2ad4e04a
SHA256

076132b55bbfbade6e2461dc15026ddc8464a5f74581867d05c9b7e5562dab7f
SHA512

934e41fc038047ca6371ff67b5ad879186d61a5942f4c45ba6bfeffcdb5b62f013f3398928ef749b7361e6dccfaf264040d4ebdb99e394dfac3fcc1fac40bbc5
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3rFC0I:ZVxkGOtEvwDpjcaC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023208-13.dat	CryptoLocker_rule2

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1684	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 1684	4584	2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe	87
PID 4584 wrote to memory of 1684	4584	2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe	87
PID 4584 wrote to memory of 1684	4584	2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-04_99834b6fdcd52feef90ee120beaae3f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_99834b6fdcd52feef90ee120beaae3f1_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:1684

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
59KB

MD5
d8d537ef97103deecc5d7badc4fcf08d

SHA1
572a768baaff42a32d5897177414fa88a2865430

SHA256
608e338933c26fb6dc89e7a27633d0e01808db7ae1f362d38d51979f2269e6be

SHA512
56a2762eee89ac55e658d3c394412b1bd826a1edbf3e13554b103edcf6fe7609324d4a238440d7c84e4d61f20aeb374b39a39fa7cbcf015ebb6803d8584a6d4a

Download Submit
memory/1684-18-0x0000000000460000-0x00000000004A0000-memory.dmp

Filesize
256KB

Download
memory/1684-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1684-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4584-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4584-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4584-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4584-3-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4584-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download