4077596284a1fed615b7495105db503c34cfb41fe5ddfd14d98203e456eb8217

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 20:00

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General

Target

2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe
Size

58KB
MD5

65e6e14a617bd3be0eb88997911bcbba
SHA1

1dd692b546212cc980f879305f66ac4d537399f7
SHA256

4077596284a1fed615b7495105db503c34cfb41fe5ddfd14d98203e456eb8217
SHA512

d7a9e8a644c846d81996ebf6955ed86c140238e564ab2a59a6c83a6cb58a304c7d8f815408889b43ae842be5f69de22d59d21b978088cc5fe682739f2d63d609
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPt547/qm3J:V6QFElP6n+gMQMOtEvwDpjyaLccVCbDZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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

Processes:

2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2116 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2116	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe

description	pid	process	target process
PID 4236 wrote to memory of 2116	4236	2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe	asih.exe
PID 4236 wrote to memory of 2116	4236	2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe	asih.exe
PID 4236 wrote to memory of 2116	4236	2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_65e6e14a617bd3be0eb88997911bcbba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4236

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2116

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
59KB

MD5
16f50f54f07c0b2c4ef5c1c1a85d48da

SHA1
c8a2c262fac2bffb2faa5d67a0c2eb26d36f3656

SHA256
c1d52c96a9da1f4f0dde0624089771b065ce1d0b16eb4df797f1848b99de1e8e

SHA512
5f540ef1b42463b129a47f2e1a92d618c752a5d6f2c4a0f97a4de27112d06d3239af741884ed9d282ce26f3b46e3b015a5079d465fc1531e7342c3d0b0456eab

Download Submit
memory/4236-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4236-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4236-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download