94fc3cd54eb0aee41249980ac8e6af5c4ceb5d8c30180518a91775af27b416eb

Analysis

max time kernel
148s
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
22/04/2024, 05:06

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General

Target

2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe
Size

74KB
MD5

960d6954cb2ba76c4898c98cc723e8c6
SHA1

974a463420669b275c46a1f5cec641d30f51ae06
SHA256

94fc3cd54eb0aee41249980ac8e6af5c4ceb5d8c30180518a91775af27b416eb
SHA512

0f2029ffec761dc82f59d136571801e1993a5c814385b9972fdb0d8fa3e8210ec93cc48b07d9c3c9d30f0d0c8d41d4061dca263a5db1d44afc0f24b2fb9a76b7
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLq:X6a+SOtEvwDpjBZYvQd2+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4264	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 2676 wrote to memory of 4264	2676	2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe	84
PID 2676 wrote to memory of 4264	2676	2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe	84
PID 2676 wrote to memory of 4264	2676	2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_960d6954cb2ba76c4898c98cc723e8c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4264

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
75KB

MD5
77d6d5781cc60f86090d916e73e71ad0

SHA1
23b8dffd70319943032ac6a57c9e5ab4ccc0fb4f

SHA256
8d46e8b3337c91a860fa8048c48986cd8f107efcadcc39eb477d5c6ce498c6b9

SHA512
90d05af87b48e430e54a42072819ba2efe914eacf0623131b6a11fa71ee50b72892531468e988d1c60f7984f540ed562176ebe4da8cc73a9917a2f2be40d6975

Download Submit
memory/2676-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2676-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2676-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4264-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4264-19-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download