11ea0a5ac7ba3589aab23724b682c3312d1c469e0763ef04c851ea620900af4a

Analysis

max time kernel
148s
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
18/02/2024, 06:29

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General

Target

2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe
Size

61KB
MD5

345b5819b1f8885a96bab5c354714f21
SHA1

01ec7e8318936709338becb7d0bd44470c444a9a
SHA256

11ea0a5ac7ba3589aab23724b682c3312d1c469e0763ef04c851ea620900af4a
SHA512

a245fe00bafdebb6dc68150452c62eb12cf5a7e21436c1b8f16bde166b0a4209cb1fa401ade343e7a71f74b5f0781c75ef3e3cf44987e8aba4c9ad566767b5a4
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/x0:X6a+SOtEvwDpjBrOG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023200-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023200-12.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4560	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 2204 wrote to memory of 4560	2204	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	87
PID 2204 wrote to memory of 4560	2204	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	87
PID 2204 wrote to memory of 4560	2204	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4560

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
61KB

MD5
2095db62cebe263e36fac235a84eeb54

SHA1
781f11dfec84d1b2109079f6eca32189724fccf1

SHA256
826ff130d277cb63882c838cfdc3bc53ca58b0f6ef8a0ab39c3eeb701215142a

SHA512
a9afd0813239bf19dc0498d389199b531235dba97aa56eaf3fa6caa81be39bb9af392c3a5d21009ea60e8dfe61991ece52a5a21aeabfd296cf8a9c72675affef

Download Submit
memory/2204-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4560-17-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/4560-19-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download