cbf1de2898f5c3ff7a19a2f98f6e9ad63107b081f9cfe649529d3fdc3e26787f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 03:00

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General

Target

2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe
Size

162KB
MD5

6ba8e7870941355f5bdf917f6e20a97b
SHA1

1936a986abf35ae0149ccd2614a71bfb3e7db54a
SHA256

cbf1de2898f5c3ff7a19a2f98f6e9ad63107b081f9cfe649529d3fdc3e26787f
SHA512

2a844c055e2327f6251c89e5b81b9bed20c79bf9b393145c518cf26f87846b42b33b9f7a88a5cfc8bcab49ba4e6f91c853ecb93f83791f2d4b45d35924348571
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgp699GNtL1emmbb:u6a++OtEvwDpj6zL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023165-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023165-12.dat	CryptoLocker_set1

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1548	asih.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 1116 wrote to memory of 1548	1116	2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe	87
PID 1116 wrote to memory of 1548	1116	2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe	87
PID 1116 wrote to memory of 1548	1116	2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_6ba8e7870941355f5bdf917f6e20a97b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1548

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

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Downloads

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

Filesize
162KB

MD5
0263eca80bc704c506e4dfe341461b37

SHA1
d1258bc66d1bdba28ef8103bc28e52ddfee6115b

SHA256
01ce6ee065ab023a1a9b6bf050298fd2636cfe964b1e168b3c41e9189d23c39f

SHA512
48d4faa349d60f95cc8bd55bece482d5edeb72edc96b5fb987cc258586d2248405a3d25ebe8e1fadccfa85a63f06a61bd18ee7dc8e7ce537414b6d0998f8fa1c

Download Submit
memory/1116-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1116-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1116-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1548-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1548-23-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download