80ad6ad8a3bc3c808b014cee99cfe38f612f46e89563bd1c4861046af9fd97b1

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 20:19

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General

Target

2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe
Size

45KB
MD5

c6c227032358e9c8d937e3c0c67498a5
SHA1

0115d4d491baebb63d145b4f5d4083766be70f70
SHA256

80ad6ad8a3bc3c808b014cee99cfe38f612f46e89563bd1c4861046af9fd97b1
SHA512

30c6627502c192e788dea6a6f9c4fbf3a4115210dc43bc76af8176479f014901f36b71a7ff99989f5a348f2576f13a4e90c0592de153e9226fbfa38acfe3d950
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X3rWS:V6QFElP6n+gMQMOtEvwDpjyaHaXkS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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

Processes:

2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4272 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4272	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe

description	pid	process	target process
PID 4592 wrote to memory of 4272	4592	2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe	asih.exe
PID 4592 wrote to memory of 4272	4592	2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe	asih.exe
PID 4592 wrote to memory of 4272	4592	2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_c6c227032358e9c8d937e3c0c67498a5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4592

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:4272

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
45KB

MD5
48f18052f329d2363f6b64d2e53f56fb

SHA1
3923cfe3bc88b91fab1b31efc23547cc7f89ac97

SHA256
afadc39eb44e4486eea604b9cd7b2771cb0f12c1db8837b9a1ed7b512329f98f

SHA512
16a2b5bb7cf077c02b8f1d1ec4a640c96aa6ecdd295f2a8e1946757eba1a8527761273ddb1c43a879114564186586ceb32bc94c346d8f18fe1326a9ca1cf8805

Download Submit
memory/4272-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4272-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4592-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4592-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4592-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download