0f898ad18f2c88fe6d73a483f5914505817a8e320630596d9702ae29ddf8c3aa

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 20:03

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe
Size

48KB
MD5

e4b2245aa6381b9bbf83092f8c5b62cd
SHA1

43e5464fd60932a064b49bbaf43d8ca2023b65b7
SHA256

0f898ad18f2c88fe6d73a483f5914505817a8e320630596d9702ae29ddf8c3aa
SHA512

7b5fc6b0032c5f91928f1bce7fccf61d83a46d9fd32bd32ec1b960aa6c40f8103d1349055d0a98f01793b10f66e60effa6f5b167c7abb9e87efbe679d0436286
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkDI:bgGYcA/53GAA6y37nb1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023234-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2400	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 2688 wrote to memory of 2400	2688	2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe	88
PID 2688 wrote to memory of 2400	2688	2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe	88
PID 2688 wrote to memory of 2400	2688	2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_e4b2245aa6381b9bbf83092f8c5b62cd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2400

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
48KB

MD5
7ae1708fe5fc3a09723c61e44bef3609

SHA1
117616631d149af38fea45a4c69258bd0800ea7f

SHA256
900b12a39f58b7ad9a565b05c34fc6edaa1a843eb51cd5d4bc17a52555954600

SHA512
06ce0154d7aa26b98db336b72b7c13c9bdb0dd269f6f88f5158831a654fe689ab67d7fa069046ebaeda6960a07b5154377095471697acb92dd95d28187c8695b

Download Submit
memory/2400-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/2400-23-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2688-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2688-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2688-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download