14c6f8520edee094586244f530782ca92c4a568fa61c4604ba5b1632da77455e

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 00:35

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General

Target

2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe
Size

84KB
MD5

447ca6806ef2db20485c607d17db63d7
SHA1

d2a7ccdef2fa28860ebe133f8e294cfd14d8b6c7
SHA256

14c6f8520edee094586244f530782ca92c4a568fa61c4604ba5b1632da77455e
SHA512

06b82df2185779825e95361b339319c76f97b78077acf14dc7996c935e9c8f317ffc18f6fe658c98ed705f7acffacf0d9e2cea8ba39a5eb04a36412cf1162e6b
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnjh:V6QFElP6n+gMQMOtEvwDpjyaLccVNlL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	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 3668 wrote to memory of 3980	3668	2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe	88
PID 3668 wrote to memory of 3980	3668	2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe	88
PID 3668 wrote to memory of 3980	3668	2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_447ca6806ef2db20485c607d17db63d7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3980

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
84KB

MD5
8c378fd248a2494a8ee5b526d1027123

SHA1
b22c8d160ee25c440b577cfe1573316a2b04f83e

SHA256
b540c218b27def1544ad86f72b6ab7479e3f3a8dc49875b56336bcfb138d1bfa

SHA512
928df25e5edd3f2c178482d8cf3f757d30cbc248ad890c25a17dcef6e67933d06f23dd73251b4d0649a706de0a55e9c2dcb469748a57739534bd0b1ac5e04730

Download Submit
memory/3668-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3668-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3668-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3980-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3980-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download