1d9132eb05ac958a93f6f0dc47fe575453532ceb8b335687ffd324efcc3fa8a1

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 07:19

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General

Target

2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe
Size

97KB
MD5

d7550eedf436f76303447a3986e037d2
SHA1

948d08f167711a09b33d255cabe33ffe786971b7
SHA256

1d9132eb05ac958a93f6f0dc47fe575453532ceb8b335687ffd324efcc3fa8a1
SHA512

461b27a7e35ad6e07f513d277a149d1a1b9ea40135ce5871cd5220284d890acbcbba6a360c5cd5ffbfe4c5add6d8efea256fd5b3a6700163d71d4db12a228ea2
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0x:V6a+pOtEvwDpjtzZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233e5-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233e5-12.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	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4608	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 5028 wrote to memory of 4608	5028	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	83
PID 5028 wrote to memory of 4608	5028	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	83
PID 5028 wrote to memory of 4608	5028	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4608

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
97KB

MD5
90b3ce784d4a39cd11cd024d02975aae

SHA1
810a294f3aeccca93725bd250b2641491cc94b6c

SHA256
3d7a410c8a7cf430edeaadfe547a6832ad1044677defd1b30934c5b47fce294e

SHA512
3cb5e73728802b55f209a024eb9d0f613c6f67fe501853c9be29aed27c1037f370394a4b6ad0a460e0d370bce0974e695fa8349056896ddb12a90dda04b59572

Download Submit
memory/4608-18-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/4608-23-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/5028-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/5028-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/5028-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download