3149cf343f5aa8e8630ca0087c19a099775c5d339962cb9d4330f78996489fb3

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
02/10/2024, 03:02

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General

Target

2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe
Size

63KB
MD5

e52d8bbae53a52a98774bdda2150bad5
SHA1

7d6f4cfba5b80b0f3e0ecda0a398927bb250b4a5
SHA256

3149cf343f5aa8e8630ca0087c19a099775c5d339962cb9d4330f78996489fb3
SHA512

74bc321fdb588be4432c7e647c7f7477e378aaf00ef4f94c4cffe86f485750a565fa0aa8dfb32e1eecf179d3096391f1356ca25b85b968f22f44a654d30e1f09
SSDEEP

768:P8mnjO6LsoEEeegiZPvEhHSG+gbum/kLyMro2GtOOtEvwDpjKvWxHCbSVaFn0jKF:P8mnK6QFElP6n+gymddpMOtEvwDpjYMG

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1084	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2712-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x00090000000233e8-13.dat	upx
behavioral2/memory/2712-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/1084-26-0x0000000000500000-0x000000000050F311-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	2024-10-02_e52d8bbae53a52a98774bdda2150bad5_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 2712 wrote to memory of 1084	2712	2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe	82
PID 2712 wrote to memory of 1084	2712	2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe	82
PID 2712 wrote to memory of 1084	2712	2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_e52d8bbae53a52a98774bdda2150bad5_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:1084

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

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Downloads

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

Filesize
64KB

MD5
a5641e09ad7b745a403ab9c5c7d7f230

SHA1
855d3757a79a643d19436bf40d01da58d32318e8

SHA256
4c1f2068dd9bc29df5f009cc58a313110403e6a60f10a6c5ca269b3093131154

SHA512
0ca3864b3ca368e616bb2fe9b25842a7c6105ae190f1b9fa473a7ec2e829dc7e616e4d5615ee18515417837f3195a4e5d62be83f1cada972992f908adc930040

Download Submit
memory/1084-20-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/1084-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1084-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1084-27-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2712-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2712-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2712-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2712-3-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2712-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download