0f783d490e13af1626e551cdfa8e2ea6600f80ce47337493d0b74466963fb6d0

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08-03-2024 03:12

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General

Target

2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe
Size

40KB
MD5

e7647ff4ea5207a1ca9de8ea730b0a28
SHA1

7a186431308e4551d6021045d80289f604e9cc02
SHA256

0f783d490e13af1626e551cdfa8e2ea6600f80ce47337493d0b74466963fb6d0
SHA512

34e5f2935322da4d27e958c43e51e0cd8f614b60284fd1379e59bcab45d0c40d45aff7a88bb43bddd2d44791084b3fb4beceed9b48f5b001d2ea12256d744aeb
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzR:V6QFElP6n+gMQMOtEvwDpjyaYaFAI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4556	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 3328 wrote to memory of 4556	3328	2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe	91
PID 3328 wrote to memory of 4556	3328	2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe	91
PID 3328 wrote to memory of 4556	3328	2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_e7647ff4ea5207a1ca9de8ea730b0a28_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4556

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
40KB

MD5
a2c6d5422107fe285e58dfc8482c4c1c

SHA1
76c03b622f1f5da56def18a7cf615539dc6cf92b

SHA256
dd5108834616406dbfd111ee33477845151362285b5a1f254d553e2141245b9b

SHA512
53de93f52e876204d930ea5df86ea3a286ceb27086ead349ea5433800c03d1c7638d670de2c434d56f0dc3bf4738c5945c961064a660044e40b6274709c30e53

Download Submit
memory/3328-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/3328-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/3328-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4556-17-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/4556-20-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download