ff87f474846242760e6a8ef04519d43abcb06b6d43132c87e004bb907cfcbf8d

Analysis

max time kernel
148s
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
10/03/2024, 06:30

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General

Target

2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe
Size

83KB
MD5

5364eaaa86ae4de11dc3ce8116f3d947
SHA1

10c713a4374ddb3aadeeae2ecdbf9bb7006695fc
SHA256

ff87f474846242760e6a8ef04519d43abcb06b6d43132c87e004bb907cfcbf8d
SHA512

abe9b7d8c883efad02a3dab9c97d611738152050fd64bc24dad89f4d2b9150f9d86b78c963c03c5400dece28e22d01c71254678cb42c3700916e07f2111df29f
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnN:V6QFElP6n+gMQMOtEvwDpjyaLccVNlr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023148-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023148-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1904	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 1452 wrote to memory of 1904	1452	2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe	83
PID 1452 wrote to memory of 1904	1452	2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe	83
PID 1452 wrote to memory of 1904	1452	2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_5364eaaa86ae4de11dc3ce8116f3d947_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1904

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
83KB

MD5
c7d96657c8848ffb7fe70eef5b327d01

SHA1
93cc770c4d9ee2e8072ce38111e7ab908fc71997

SHA256
6e495a2ade831a5898b4f1861088e6d1129c07c451b5a99bd5fd3932f3f374de

SHA512
bdef78873326039d3733c4126650e89b97747fe90018ee159a4cbb903b0b6ecdb9944c268744e49887eaec3305ee42d51440837bd817d7b269281bdcdd90b30b

Download Submit
memory/1452-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1452-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1452-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1904-17-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1904-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download