97c28c024c85a0586402151aa3b1e48f5c1337396fa236962f6734794777bea8

Analysis

max time kernel
150s
max time network
155s
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 19:26

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General

Target

2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe
Size

73KB
MD5

e5eab4fe94d650da2502d191c6650855
SHA1

4d490679a2d04c27c1f35e24124e73bb355890ed
SHA256

97c28c024c85a0586402151aa3b1e48f5c1337396fa236962f6734794777bea8
SHA512

8973ee70b56cc4ee47be50dd38ab18ff54f49cc89ed6ce16fa1b3f54b18607a4e3c011191f4260d8b7b7592e733264ecee75813e214b95a7238795caab7060cb
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1/:X6a+SOtEvwDpjBZYvQd2/

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_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1656 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1656	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe

description	pid	process	target process
PID 5104 wrote to memory of 1656	5104	2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe	asih.exe
PID 5104 wrote to memory of 1656	5104	2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe	asih.exe
PID 5104 wrote to memory of 1656	5104	2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_e5eab4fe94d650da2502d191c6650855_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5104

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1656

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
73KB

MD5
4040699647fe3a3bfed4e9cb33805712

SHA1
570ed177fb3075c4c7bd21d7054b3b40671849d6

SHA256
83df3ffc572bc5caf2b98ea8f5f958a281c46e397f6e0f83fa840e92597249f3

SHA512
16e02130d16e695703dc55b4a2861c2c4a416fe1270cba87e6da0bfd19a54ff0d952bae695b8c27d2ce7814a3a2396402356ccb363060689109b64c4f03f4e63

Download Submit
memory/1656-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1656-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5104-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/5104-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/5104-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download