06319e8ac391fd4a744e1e5376da8eea989b274f2ff445f96bc2f0b0c471c1fc

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 11:22

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General

Target

2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe
Size

75KB
MD5

022875d8858cb4afe1976d0f7a9ff71c
SHA1

08aa27c3bb6d44dde60ff50ebefe924b0bb9fc8d
SHA256

06319e8ac391fd4a744e1e5376da8eea989b274f2ff445f96bc2f0b0c471c1fc
SHA512

d5649137a9711d0eefb44880ce79f2ebce40c86154f15fb7e9e7da7547960d2b173e871108f5d790181e199ece21b1075c6166371e01db87ab27e1fd8939f76b
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTF:ZVxkGOtEvwDpjcaxM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023162-13.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4524	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 640 wrote to memory of 4524	640	2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe	85
PID 640 wrote to memory of 4524	640	2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe	85
PID 640 wrote to memory of 4524	640	2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_022875d8858cb4afe1976d0f7a9ff71c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:640
- 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:4524

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\misid.exe

Filesize
75KB

MD5
27f1b9ac49dd5e85243e19385532217e

SHA1
92c35fae612ba260b992f0733ea91fd579074d29

SHA256
28f85f3b0cb0e5f125db2275aa4634d6deb5c88eac7e4b7ef4fcd6bf77e820fc

SHA512
0ff91854524a82c291a0be17b2c2da2e0f9ac3a70b81c99a22fd725ba5862ab21f0f9f14e2139c43b511680875640ac930ca08754eb2572943f3dad37b8689fe

Download Submit
memory/640-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/640-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/640-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/640-3-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/640-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4524-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4524-21-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download