ad389e3a9d23f0c169b4c713ec891be4b83ad9a393f726b7f61b9b2f40185af0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 14:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe
Size

97KB
MD5

094a553c42684426ec896d077c4e2990
SHA1

839fbd646876b6a042c2e7d8c9b57373162adf58
SHA256

ad389e3a9d23f0c169b4c713ec891be4b83ad9a393f726b7f61b9b2f40185af0
SHA512

af85b61ddbe80015fff8f5e9cebb8a2778ead93a89765a7d74c97dbd2e8715bc30f248d473e70cd5eba2fe22d82215e507ef45a105bebc7c9008ad49873e73d6
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPe:AnBdOOtEvwDpj6zw

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
564	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3960-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0009000000023472-13.dat	upx
behavioral2/memory/3960-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/564-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 564	3960	2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe	81
PID 3960 wrote to memory of 564	3960	2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe	81
PID 3960 wrote to memory of 564	3960	2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_094a553c42684426ec896d077c4e2990_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:564

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
97KB

MD5
04c33517c5b4413156ab41c15ec35e37

SHA1
38e3a649bcc24000327a45ce04aa53e5289cadbe

SHA256
b54fc4cdbb16a05d65fe8057d6e1114de65acac448d5f508b1b6c579aa0879a4

SHA512
a8c860409802a7ecb27c7ac6593357b3c4eaa0a102a425997943a161bc5becc6d02b2605a8596ce28830b3b1b567232b0060a10d3ae3d5242b04b6651e3490bf

Download Submit
memory/564-20-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/564-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/564-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3960-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3960-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3960-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3960-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3960-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download