b188c3923c79f8bd06f39c286a1ff230c7fce915674f2676ea7412d20acabd3e

Analysis

max time kernel
148s
max time network
152s
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, 20:25

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General

Target

2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe
Size

46KB
MD5

629cfabe44f6be027eea068a0e511d02
SHA1

b2b08195da70bebe8a5f186088f7002ce7a96665
SHA256

b188c3923c79f8bd06f39c286a1ff230c7fce915674f2676ea7412d20acabd3e
SHA512

395c9a109abb2499b0ba02c580acea9efb7a5b077f013eb33bdccb588bb7f55958a4749ecf096edc8f67aa6c2448865cc8c70850fe52a9752d653a461a8b20c1
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsBA:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3WA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000226f2-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000226f2-12.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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	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 1932 wrote to memory of 2632	1932	2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe	82
PID 1932 wrote to memory of 2632	1932	2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe	82
PID 1932 wrote to memory of 2632	1932	2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_629cfabe44f6be027eea068a0e511d02_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2632

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
46KB

MD5
bcf4df83c486fd40e5081efb912c23da

SHA1
2fb2ddfdfdf7d3e726e7a46f0f5de8a4f34428ea

SHA256
c984241a5f402e464ecf1e53986de7e5dbde546603500ab24b804d5e0cb9b24f

SHA512
b84dc9b9c194ed6e70a7e6abd550db3b13596bff7cb21a8bc844094b239353ff84425b486e55ec29f6daf82767c5784546127acb0a22a6c0782c26027f1a8fd7

Download Submit
memory/1932-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1932-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1932-7-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2632-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2632-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download