1c96fafa5d61c2e874dde0e30a68de324756ae749090f40335a93195913d0947

Analysis

max time kernel
148s
max time network
151s
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, 07:25

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe
Size

86KB
MD5

bff927fb501b38482e05fe9b35598023
SHA1

6bd50bbd44380a8e1360214e6c48a594fffbfd56
SHA256

1c96fafa5d61c2e874dde0e30a68de324756ae749090f40335a93195913d0947
SHA512

09824f84fd386c2ac4bc06e0373e948a7618d7938fbfe7ac3b3f1ac33c80ffb4a10a75795dec4ba5813f597467302be22a8c40acf957f50dfd1d2a97bc445116
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgcf9yg:AnBdOOtEvwDpj6zo

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4028	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4224-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0009000000023390-13.dat	upx
behavioral2/memory/4224-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4028-26-0x0000000000500000-0x000000000050F000-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_bff927fb501b38482e05fe9b35598023_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 4224 wrote to memory of 4028	4224	2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe	82
PID 4224 wrote to memory of 4028	4224	2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe	82
PID 4224 wrote to memory of 4028	4224	2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_bff927fb501b38482e05fe9b35598023_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4224
- 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:4028

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
87KB

MD5
48a1b942708a99ebb5a2fb54f10c1f4d

SHA1
399ac1fba3ab3eca548da08d964569bb652f4999

SHA256
4885beb143e9d43ea07cbe997616245306a02bc67d88253d8984e8eff65ab724

SHA512
f02ad9a669e3f57ed5cc7358abd8c7a88a68e2ae80374ca13a7ea41b46883700263f1d2e20ea275ea1a617c423fbf88849c8322a19ed4626b77dc9aee823243a

Download Submit
memory/4028-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4028-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4028-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4224-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4224-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4224-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4224-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/4224-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download