a6d12f3c8c4e4f533e8d25d0f858a091dfb07f7ec6914c1ed3c277ce09101384

Analysis

max time kernel
134s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2024 06:02

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General

Target

2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe
Size

48KB
MD5

91b3952c1b085ea2d426340f27f61841
SHA1

a4b86a6e15a1ba72bf17c97ea060f75f37393157
SHA256

a6d12f3c8c4e4f533e8d25d0f858a091dfb07f7ec6914c1ed3c277ce09101384
SHA512

33405f545341c7bccf9e57cc5fc780d1b7040e9f427c2b01e281c6bd6ac2dbf429b31915ab1dc2a14c0abe3726c67f50798683c5ba8ae693fc23aca97643eb20
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyV4tFVgQuj:bIDOw9a0Dwo3P1ojvUSD4PRtFVgvj

Score

7^/10

Malware Config

Signatures

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4752	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 2752 wrote to memory of 4752	2752	2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe	91
PID 2752 wrote to memory of 4752	2752	2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe	91
PID 2752 wrote to memory of 4752	2752	2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-11_91b3952c1b085ea2d426340f27f61841_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4752

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
48KB

MD5
5100f89398aea87e6af83d71a73f7448

SHA1
87b84cc0b7b346efeaafaddb62425944ac7cf52a

SHA256
2122c95a0aebd5480625550364f6e1ed4b00e6b5b47867a106f1bdc8eecb51c1

SHA512
37be9b8861c9f7fb2012eec7dd63b9d2db8708732abec289be513a9ca5c12022199cc1c0c350ca573741a79e1963cef4150fcd12e900892ffd2a2e4eadd5a28e

Download Submit
memory/2752-2-0x0000000002030000-0x0000000002036000-memory.dmp

Filesize
24KB

Download
memory/2752-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2752-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4752-17-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/4752-23-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download