d700d1c0e78117728d3124c9e769d52ee22909ee91c42c96de4240fda38cffe5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 07:27

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General

Target

2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe
Size

44KB
MD5

15ca2ed495973011741b8de493a7abeb
SHA1

da07facfae10a44d12c8003f0e342aa986bcdad5
SHA256

d700d1c0e78117728d3124c9e769d52ee22909ee91c42c96de4240fda38cffe5
SHA512

762dfe97b03efe3f90753609e7784a14a4d96525a5d49ea14bef319e9aece3ae1ee2d67b65d578b505c56bdcf0b7486fa61c0e4f3b21089b044269d6a2dba307
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9HxY:X6QFElP6n+gJQMOtEvwDpjBmzDkWDta

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2992	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 3084 wrote to memory of 2992	3084	2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe	82
PID 3084 wrote to memory of 2992	3084	2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe	82
PID 3084 wrote to memory of 2992	3084	2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_15ca2ed495973011741b8de493a7abeb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2992

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\asih.exe

Filesize
44KB

MD5
d2e9b66fa0cd3e148d5a9b67dc53684a

SHA1
792527da17350b205bffec6130e9d8d652829127

SHA256
e489f7c84fc68cc0046e3c78a263a825749eb4067e2292bc313fd5b94c7535c6

SHA512
0b20791044db13c51cdf5beeff5734232251062c3e93eb279db9a50a8b247a0554cc093366250cca5cbba7011c66772f009807a89a3896cef012e79ac3e72b5f

Download Submit
memory/2992-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/2992-23-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3084-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/3084-1-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/3084-8-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download