92266c97d36ac3bf20142a223258f57f9b3a3aa5a0bf2862e2a2195333487f44

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
17/05/2024, 01:33

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General

Target

2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe
Size

73KB
MD5

c2380de4ddae1c21ff8053a3feb6973f
SHA1

bd8eef267a8c1977d67c9dda1cb9e4e82941d235
SHA256

92266c97d36ac3bf20142a223258f57f9b3a3aa5a0bf2862e2a2195333487f44
SHA512

b6ffc4c0261d4ff7f8ffabbe988241097b3c6c496b98f861718f52ab21776c3c9cf5403b6d613f9fa810a89c99c9c4ebb7688d088aebd1f997900c5052686be0
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsi:u6QFElP6n+gWMOtEvwDpjJGYQbi

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	2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3184	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 4992 wrote to memory of 3184	4992	2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe	85
PID 4992 wrote to memory of 3184	4992	2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe	85
PID 4992 wrote to memory of 3184	4992	2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-17_c2380de4ddae1c21ff8053a3feb6973f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3184

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
73KB

MD5
4868886d72f53fa22db551d0bf68bc1a

SHA1
8e31162022ff55e942ccc5a0d9f04c26d7be560d

SHA256
c10b741e771f1462c13c124be44615eb4e45e5ae98214e77ef47ee6f52bba67c

SHA512
2c9c6635d0e881bcb77848bd37482049d1eff341c5bcc25f69aac7a965d2b72760aa9e3e91795140c776bcdc46a8dc033a05ddfc0340eb385408dfd739175ac2

Download Submit
memory/3184-18-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3184-17-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4992-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4992-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4992-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download