2270328cc4bb6060fa776d6d67fc1d5cfdf0ada5fcdb7a727f775d94066a2cb0

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 20:28

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General

Target

2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe
Size

46KB
MD5

60c5af849bf3a02d9ca3f3329548bc37
SHA1

2251a273aec74cb9a1690481fbfb2259cf388c43
SHA256

2270328cc4bb6060fa776d6d67fc1d5cfdf0ada5fcdb7a727f775d94066a2cb0
SHA512

04bd11f41d7650a70139dc8b88451a701d3739f8894d8744b7e9ffbf3bd321a000a3224271f1901d8dc55cbf1b3cb0214523b4fb09f2167af8cf48b119be504d
SSDEEP

768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2MoL4:qmbhXDmjr5MOtEvwDpj5cDtKkQZQO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3148-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00090000000226e8-13.dat	CryptoLocker_rule2
behavioral2/memory/3148-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1480-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/3148-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1480-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/3148-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/files/0x00090000000226e8-13.dat	UPX
behavioral2/memory/3148-18-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/1480-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1480	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 3148 wrote to memory of 1480	3148	2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe	83
PID 3148 wrote to memory of 1480	3148	2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe	83
PID 3148 wrote to memory of 1480	3148	2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-19_60c5af849bf3a02d9ca3f3329548bc37_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1480

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
8ce86f29dd501cd5409bfb8e6bbc3e8c

SHA1
91721fc9b8e531bd5a0aec70e657e98383570697

SHA256
ebed163fa1b17976ba6cde8c62911acea1055217338b1529850ee9b0431d8795

SHA512
845eebfdee70fd4c14aef51f25268fa0b20b112050812cbf639f1bf179cfcad68587eeeb698111c8793fc6a45b02c56ddb54fff8fd7a04a9c905ea04e8cf691a

Download Submit
memory/1480-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1480-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1480-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3148-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3148-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3148-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3148-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3148-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download