d87f83c52253b9149995b388119158b372382a60b39181111f2444f01c1c4c5a

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 04:44

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General

Target

2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe
Size

45KB
MD5

58cd6b7713d8766ca792f1847665d804
SHA1

b26cd42a2cb8b690db12edd47f3a8fef007b80ab
SHA256

d87f83c52253b9149995b388119158b372382a60b39181111f2444f01c1c4c5a
SHA512

4b662ca10a44f19816ca525d1d89883386303dcd281ee3d6e6fde3194b92af983fca7ea3151448c33ec24c11c76aa3e0e33c16729954b17dbeee96254025408d
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuCmAG:bIDOw9a0Dwo3P1ojvUSD4PInrmAG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023241-12.dat	CryptoLocker_rule2

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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3460	lossy.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 228 wrote to memory of 3460	228	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	83
PID 228 wrote to memory of 3460	228	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	83
PID 228 wrote to memory of 3460	228	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3460

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\lossy.exe

Filesize
45KB

MD5
40a1bc6b50c5c4ec8df1c7c7bd737f72

SHA1
aa124c228b9f61a456872c0e2aae8b2d68450a4a

SHA256
9f29c8aa28965f963b98dcf5021baeed9bf29c4b06c9cdffe995cad5f1db4ade

SHA512
383f080dbeff7cc3c42c1318b3a5522189f6584e26b13a201de5943b5b3fe04c00fb4660d4f2c0e1a78d62a6d4dd69f85e519bc2c36b035e0347ea2a9acd0676

Download Submit
memory/228-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/228-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/228-2-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3460-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3460-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download