5c2f8e0e9737c115a6ef44e034cfbf6db6792bf34ec8d5e40dbc03417093f8c2

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 06:24

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General

Target

2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe
Size

62KB
MD5

0a89c7901edc3b5c6a43f680b04e1f5b
SHA1

ccfc63505a5f1aed1ed4bc486178b005bf98fc8c
SHA256

5c2f8e0e9737c115a6ef44e034cfbf6db6792bf34ec8d5e40dbc03417093f8c2
SHA512

dc5a0c72f456e30b139d5ee41fd9ebd5fa6f1709972bf2694e30b5290d2eb4f98f236d23c616b3a73aa0dbc9c7c0660ac16643a17b728cf496b2e55a0e78f2a9
SSDEEP

768:f6LsoEEeegiZPvEhHSG+gz5NQXtckstOOtEvwDpj/WaD3TUogs/VXpAPWRi6:f6QFElP6n+g9u9cvMOtEvwDpjnpVXzR3

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

Processes:

2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4060 asih.exe

pid	process
4060	asih.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/5096-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral2/memory/5096-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4060-26-0x0000000000500000-0x0000000000510000-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

Processes:

2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exeasih.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe

description	pid	process	target process
PID 5096 wrote to memory of 4060	5096	2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe	asih.exe
PID 5096 wrote to memory of 4060	5096	2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe	asih.exe
PID 5096 wrote to memory of 4060	5096	2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_0a89c7901edc3b5c6a43f680b04e1f5b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096

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:4060

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
63KB

MD5
d5cb7480430fd2d9c8d253a2ef34a5a0

SHA1
0d34bbf0d266f899a76ee2768108e9e1b12abd61

SHA256
99eab6302ac3e163316f1f5127ec2eda3e480538ad5613c145c104cf992e892c

SHA512
d34458032c57614d3ad9aee8f9ae42322e95bb1540bf77a05836c88c01c6024028daff2606923c1e2deb0a9b7746025b0b38e1d76f5cc8be03d97766914476fc

Download Submit
memory/4060-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4060-25-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4060-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5096-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5096-1-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/5096-2-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/5096-3-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/5096-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download