c3b47528321a2ede659c3df4436c8cbd1872b88e95330e412b6dfa5b8a6fe4de

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2024 15:13

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General

Target

2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe
Size

39KB
MD5

0191b518f5a8ded4c24a28e0ba948390
SHA1

3ed4f703b04500f1782b9b6de56e474445aee9a9
SHA256

c3b47528321a2ede659c3df4436c8cbd1872b88e95330e412b6dfa5b8a6fe4de
SHA512

22776f45bf194a94b55c169deed572dba8ec245efa519ba80c4558fe07fe051f49dea72d1e351df46f494b8db3da48558913e937476daed3f6a39a0977cf3e7d
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyURTe:bIDOw9a0Dwo3P1ojvUSDhRi

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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1216	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 4232 wrote to memory of 1216	4232	2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe	91
PID 4232 wrote to memory of 1216	4232	2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe	91
PID 4232 wrote to memory of 1216	4232	2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-03_0191b518f5a8ded4c24a28e0ba948390_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1216

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
40KB

MD5
e36e6251966e81f183c339c6a831f921

SHA1
5b52e2787c0fd1d549b7e5d5d114c2cfdd337bc9

SHA256
a94579cf6766395b270f1aa1f0f1ecb40001ef04dad6be0bd22024db284dea36

SHA512
34f85d6c8a1b54558d8c44129c0a83f8b30d0e8385679435885b326907b6514a45698564b1366c14b203aaa62cdab18a2b4a02cc2f000907d84db21e79836e07

Download Submit
memory/1216-17-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1216-19-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/4232-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4232-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4232-2-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download