3482659ffc8221876eb7c3ca4f5d88b23910e7e8489659d3cf753d7f065e5fe3

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 22:39

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General

Target

2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe
Size

62KB
MD5

6a06e2ddf7e29c83de508024d9c96000
SHA1

4145c4aded7439315147cbe8516fa2eaceb2a70c
SHA256

3482659ffc8221876eb7c3ca4f5d88b23910e7e8489659d3cf753d7f065e5fe3
SHA512

d1dfd665707e76a33f413ef7b268f6fcefd54d7f42d782a402fb7ea5a15374cc43d67cab8501c52127196e5e3bf5884289b6bff97567ee77ca8107c5ebed18c6
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xEdt:X6a+SOtEvwDpjBrOO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000002310d-12.dat	CryptoLocker_rule2
behavioral2/files/0x000700000002310d-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000002310d-12.dat	CryptoLocker_set1
behavioral2/files/0x000700000002310d-15.dat	CryptoLocker_set1

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4728	asih.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 1528 wrote to memory of 4728	1528	2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe	83
PID 1528 wrote to memory of 4728	1528	2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe	83
PID 1528 wrote to memory of 4728	1528	2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_6a06e2ddf7e29c83de508024d9c96000_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4728

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\asih.exe

Filesize
63KB

MD5
8b99c081fc04241f4b475dd7d7b15d5c

SHA1
7d04231e041dd3ef8ad60922b1d1fb63003b766c

SHA256
44afac0c4c0e36e896ae180f5c40a0973e7436004f39e0b2b08599bdba086ffb

SHA512
999a3db30e2f985713602b354c38affb6ff0db123a388ed9d3f603b15ed41a395195592a49e6fa7ab968b6a6371de6ccc9768d8bbc342be7cd73b518c82a64a9

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
15KB

MD5
06cfc0b5f5f327270e1e26d8e87c0536

SHA1
5f441c40e6d8dd9c1e7ebe68a61dc5efe3e2b06f

SHA256
e1955afe0338cdead984123e26daaabf9db2db697f6bdcfe08bd07cb9a0902f8

SHA512
0072b62afd1c0b07d08cbf806d811d0a646b3694d3f4ed5fa653362a4c6c560f378c0bc69b47fc07f528aec07173ddabbb2039429ee6831622a3306d4b0eef4b

Download Submit
memory/1528-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1528-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1528-2-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/4728-17-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4728-18-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download