504ac48a595d3317dd038f787c1ea14ebe64c73bae9cb090730300c50ff6f2a6

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 03:47

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General

Target

2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe
Size

59KB
MD5

ff47b88b1661e2a65d22f2b259b5fb3b
SHA1

cc842521f5580264f173bd4a2975c9ca984c3c9d
SHA256

504ac48a595d3317dd038f787c1ea14ebe64c73bae9cb090730300c50ff6f2a6
SHA512

ecc1d5232283793256052008824f4635ecd41ce68d079982d7c40b4667a23ec46138a97470fbc5548262e83653062a2a2db750fc8914537092df639b50836145
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3q6t:H6QFElP6n+gou9cvMOtEvwDpjCpVXhE

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4616	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4508-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023450-13.dat	upx
behavioral2/memory/4508-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4616-26-0x0000000000500000-0x0000000000510000-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	2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_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 4508 wrote to memory of 4616	4508	2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe	82
PID 4508 wrote to memory of 4616	4508	2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe	82
PID 4508 wrote to memory of 4616	4508	2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_ff47b88b1661e2a65d22f2b259b5fb3b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4508
- 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:4616

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
59KB

MD5
f585d38fc22a321066817738b593b7e1

SHA1
d6f086e2474de4452d1fdc9aeae59fda6665cddd

SHA256
416671b3e6154b0f505d1c1a164e1ff1f028f48839597a6c8ecc6eb1764c6778

SHA512
4dd69e369b4179c1801c03c8fa5076ed8e1b3a4c655d8c253a715d06367873076d5c7e7c5afcc8c168076e6f818c59df8d426df12681473b5a84da1a7f85e6b5

Download Submit
memory/4508-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4508-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4508-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4508-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4508-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4616-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4616-25-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/4616-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download