3e9ac5e8dd06806cdad6cfb03ce2731dc61b591f75cc4b64b08d9e7930c1edd4

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 22:27

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General

Target

2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe
Size

97KB
MD5

3e40eab332d185dffcd28dd1e6103162
SHA1

e4dfbac166bdff567654fd16ab364988b8ea3a0c
SHA256

3e9ac5e8dd06806cdad6cfb03ce2731dc61b591f75cc4b64b08d9e7930c1edd4
SHA512

63ef126f0378d3c8c18f2974bdc1bbe8ebfbb6427d09c3de0c12c90d10c71e23abdb1da20c93e1f1918eee0a41d55c718bb9f2b4f2592b3e9fcfdcfe91cbfebc
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbbr/Bg:z6a+CdOOtEvwDpjcu

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4572	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2936-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000a000000023bc4-13.dat	upx
behavioral2/memory/2936-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4572-26-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 4572	2936	2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe	84
PID 2936 wrote to memory of 4572	2936	2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe	84
PID 2936 wrote to memory of 4572	2936	2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_3e40eab332d185dffcd28dd1e6103162_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- 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:4572

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

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Downloads

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

Filesize
97KB

MD5
b59717318fd6ac30271da60665fb7b92

SHA1
393cabc7c6bc1bd17babf587a096b9fba3f7cb49

SHA256
a0008da011142396d4d0d69f0746a0843be89fb2743458b57d32e78eb3865ae1

SHA512
4cc4e9a37789b3b3e00024892d2636112c3accf0a48d6935b3b4b4c387966674bb26ba64662515df48307012d780b9a69a74b357f2c7d38d89a8f91b612eed8e

Download Submit
memory/2936-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2936-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2936-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2936-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2936-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4572-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4572-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4572-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download