ce7b44c418575aaf87747a534b0122b40dd591589d4b766a7a5d8be70c385a3f

Analysis

max time kernel
149s
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
12-05-2024 09:33

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General

Target

2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe
Size

39KB
MD5

af0f92a4967549a8bf83c59a2c6417f8
SHA1

e4a885a933a98aebbb30813ceedea1cfb6719f77
SHA256

ce7b44c418575aaf87747a534b0122b40dd591589d4b766a7a5d8be70c385a3f
SHA512

e75af68110c0a5d6cc14cc9b4de72778f65ea33bf436bb6817add997ed3fe2c0005172920930dd723e024a8b182b5149dc2db7bdb1cf43bf25f4721132cfe7f0
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvmv35vE:X6QFElP6n+gJQMOtEvwDpjBngHnZ3RE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023298-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023298-12.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	2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1000	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 1344 wrote to memory of 1000	1344	2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe	83
PID 1344 wrote to memory of 1000	1344	2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe	83
PID 1344 wrote to memory of 1000	1344	2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_af0f92a4967549a8bf83c59a2c6417f8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1000

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
39KB

MD5
13c625694b0bfec149620ac1d84558d2

SHA1
e0315d02d961884a4ba2cf795ef2ebccddc17cd2

SHA256
e5b4f2f4a032cf47ffa685070cb08882b959bcdee14b5b866da92cdebb5f6a50

SHA512
43e39842bb88b39838d08f5878f6edc3634fb3035204edc7b526f281834fd94bb67ba00fbfad2119a1b7a09b349db4783927f531027f85c4a3d50074f3199198

Download Submit
memory/1000-17-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1000-23-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/1344-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1344-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1344-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download