bc197cae2499addba32843794e638bec5484272e5adcb279c3ebfe1d3a494819

Analysis

max time kernel
137s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 06:26

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General

Target

2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe
Size

63KB
MD5

802b16c69d76dbc323cd75090fb9e9dc
SHA1

5440b16409081025e9e73902ea07e26f221e2acb
SHA256

bc197cae2499addba32843794e638bec5484272e5adcb279c3ebfe1d3a494819
SHA512

e3fcee58f620fc1e195c17118b450aa327e935ec3e80b7e9d533e8a215dd9ebf6424a0b97e2bcd7027479025208e86ad52bbd293fc159ba4c5757398131877dd
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVn:ZVxkGOtEvwDpjcaw9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023127-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	misid.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 2244 wrote to memory of 1444	2244	2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe	83
PID 2244 wrote to memory of 1444	2244	2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe	83
PID 2244 wrote to memory of 1444	2244	2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1444

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\misid.exe

Filesize
63KB

MD5
a3da866456b44c6aae999554fefc1e59

SHA1
4f64739697ab70e970ec7dea1b6bb58620a0e1ed

SHA256
b7537df926907b32c92f68dfc13538555379ae718272116411c7053088d00f83

SHA512
ececef83a4ea4a64fafdde01b75f85a5414863e2329f96dbf742087282fddbdbf5705ae40946faf80ebe834e0900007dafd462f1fa43e4bed737f128eaebda3e

Download Submit
memory/1444-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1444-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1444-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2244-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2244-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2244-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2244-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/2244-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download