7bc75d7bf982b40afac99c3fd007573e2ab9fc37967904c9fda92d4cc83d9b5c

Analysis

max time kernel
22s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 05:56

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General

Target

2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe
Size

32KB
MD5

7d6502d7704c80f00bee5e4b1fde4555
SHA1

e47133d9ad49ac148f4bc3a82a52852f19f643b9
SHA256

7bc75d7bf982b40afac99c3fd007573e2ab9fc37967904c9fda92d4cc83d9b5c
SHA512

7d880efd16fbbe0e791068d74d2c64544fddf230cda69a4136037d0868220145e9733859b34e771673a45cb3aef779acbc51a4fed654c12b5934d25d88419e5a
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznStwIoIQ+dHd9PR+:b/yC4GyNM01GuQMNXw2PSjS2uvdHd98

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	retln.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 4968 wrote to memory of 2836	4968	2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe	32
PID 4968 wrote to memory of 2836	4968	2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe	32
PID 4968 wrote to memory of 2836	4968	2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_7d6502d7704c80f00bee5e4b1fde4555_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:2836

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\retln.exe

Filesize
32KB

MD5
63cc28d0b5f97c465b83a13e58817f85

SHA1
efb9a4698a84c2479e8ee539d2f7e07801763a4a

SHA256
fba1d954be38d7c80a016f8fc43a5045d5ef47b3e60deec340be95ed3e0796c1

SHA512
8eca0af9561d3e54befe4e231d0823b503b105eb46ccbc808e3e7c49a6f38bd551252667ab8f0d910554dbac316d42ba20e4387d25b71fd072405000fe2fc1b4

Download Submit
memory/2836-21-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4968-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4968-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4968-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download