bec0939b590e22c8bbeeb741f533741d112752159322b8fb7cbbbfe4a88c02f9

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 19:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe
Size

39KB
MD5

6befb33ffacce1f6f2f83600f2ca14a6
SHA1

2c16d37ecd9a41e7439fe10bfb6e55c5bb638521
SHA256

bec0939b590e22c8bbeeb741f533741d112752159322b8fb7cbbbfe4a88c02f9
SHA512

52c4432f537ab1e24285bc20ee6885efb95d67a127e9b72a54e6c39825b9e802fdad94e1d51ce0b2d015e8996218b1234900510c8dee63a4ad313bd1791f7970
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PC:bIDOw9a0Dwo3P1ojvUSDhK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002312d-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
224	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 1992 wrote to memory of 224	1992	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	88
PID 1992 wrote to memory of 224	1992	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	88
PID 1992 wrote to memory of 224	1992	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:224

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
39KB

MD5
264a9efafab8734a97637994fb942b0e

SHA1
fcc80e61d950ac51c417df244077d170f1ac85af

SHA256
b3b758da1b95bc29bc3845cf0efd3308959ae178aad07b1c6e99623ee07cf771

SHA512
811e9de968ea8c0fb3b70bf15e8c481f95914a194a942604c6ce18824d3db020ed3af4baffb1625672305d6617a2707e3b62560d14a390c4a6bb0f195f008db3

Download Submit
memory/224-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/224-20-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/1992-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download