06ff16cc5ff695a099523129baea268914acb0364db2cf66c30045f6377d3371

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 01:25

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General

Target

2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe
Size

75KB
MD5

3289bac175eb1dc5774f170e6fc5febc
SHA1

9cc85c0214d2d5adc6724ab69a68c9ab422e91f3
SHA256

06ff16cc5ff695a099523129baea268914acb0364db2cf66c30045f6377d3371
SHA512

2ac8c31c30f07a8e42e0864fe89055f70fcd36e6900eed5ec614a2ebf26174db239d93d8792f62fb7530d0daf681e6a1ab31a697b48c8dcb50d0c39508fa7b4b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siH:X6a+SOtEvwDpjBZYvQd2N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4904	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 4644 wrote to memory of 4904	4644	2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe	84
PID 4644 wrote to memory of 4904	4644	2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe	84
PID 4644 wrote to memory of 4904	4644	2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_3289bac175eb1dc5774f170e6fc5febc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4904

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
75KB

MD5
cf7ad2022dc7ddf7843555ea88c6faed

SHA1
e3b2b3306de6bec26873d74e546023b6b7e4d81c

SHA256
911b7df79a1fde904c6f1868187925a2a3c8d6fadf03cab74be701d2252bd659

SHA512
5fa5e0fbb35e0a1f33115fd06d17d57e9d66bb74fc84c0dd8c6049e8617f558a01b426bcb879f99d70985f09607e42a5d8bdf8c27460b7c1b20b115b276f7841

Download Submit
memory/4644-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4644-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4644-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4904-17-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4904-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download