5f199ec78a52e4213006ca5fdd61aaae733de25cea60ceb444f3b95999af5292

Analysis

max time kernel
149s
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
31-10-2024 08:30

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General

Target

2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe
Size

90KB
MD5

ba2672cdff6564f385255e1ceb3a8445
SHA1

51c624604eaec566aefc2a91b3cc18eadeb14381
SHA256

5f199ec78a52e4213006ca5fdd61aaae733de25cea60ceb444f3b95999af5292
SHA512

2c1a9ce6758a55760a0173e550e76d396cb4309102dde0fe6582fd59a59bfe0cf5164f1b3c6f3468c0fa6f3294aaad6dea44de5759e332cead7c780407c437f2
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5im:1nK6a+qdOOtEvwDpjk

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1852	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1636-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000c000000023b59-13.dat	upx
behavioral2/memory/1636-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/1852-26-0x0000000000500000-0x000000000050F311-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	2024-10-31_ba2672cdff6564f385255e1ceb3a8445_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 1636 wrote to memory of 1852	1636	2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe	86
PID 1636 wrote to memory of 1852	1636	2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe	86
PID 1636 wrote to memory of 1852	1636	2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_ba2672cdff6564f385255e1ceb3a8445_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1636
- 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:1852

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
90KB

MD5
827271470972e331ca3c1d2f5f030dd1

SHA1
31a7ce40f383e841a9a1ab179a9c8e704aecad58

SHA256
94248d5430ac4200c4d5077ec40e43153fe5375ef8e106ae1ee1c4af79bce098

SHA512
d4fc7fe50d9bc23ba68df501c52e0d6f4351577487a3dabe65983b02b4587e5676ce3f2b637200ff2211595bcd9a0362f5fabc1b82b97b139f1b8e3b7069cd3f

Download Submit
memory/1636-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1636-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1636-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1636-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1636-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1852-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1852-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1852-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download