32cd15a814c2b36d0867d30af757d102662ddb3213a9a797b05416778d0ee7ca

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 04:39

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General

Target

2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe
Size

66KB
MD5

f90d1fa798d55e959df892c3cfc472f2
SHA1

30863083707ed3056f316563127404da57a3539e
SHA256

32cd15a814c2b36d0867d30af757d102662ddb3213a9a797b05416778d0ee7ca
SHA512

ef979c387c43e9e34f8a1ec14d31bc2393d8a17ea14b32d2be3f2d990f1775477c0d4e59c3b2b94584952023db355f65b5d006e5ca68d0d9eabb51cef5f90980
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh854:V6a+pOtEvwDpjvv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023298-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023298-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4900	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 3968 wrote to memory of 4900	3968	2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe	83
PID 3968 wrote to memory of 4900	3968	2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe	83
PID 3968 wrote to memory of 4900	3968	2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_f90d1fa798d55e959df892c3cfc472f2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4900

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
66KB

MD5
bdf37a71848a826058f82479d03cd28b

SHA1
071194218bea7ca7192973292a65d4177334e64a

SHA256
618e5995ffb4f796a679cd86f25d0f1d0314b31b78bcdb4310e279a2766c68ae

SHA512
42b0288551ec51b02865902c05d85359ef77d9e51b41418a3d3e864c09da750aedd38a07eb6bcbc03c92216d0bd3afe77330eadd83137d1d764d3693a791aa3b

Download Submit
memory/3968-0-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/3968-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3968-8-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4900-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4900-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download