c53cd5b8e17e30051bb2387de276e0149fb0d492756295980863bd2efb61527a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 04:02

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General

Target

2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe
Size

60KB
MD5

cfe89a16af54d0d4d6cc376e363cc839
SHA1

0399e63c18ae9f501d441b246a7f1203a0dc8df6
SHA256

c53cd5b8e17e30051bb2387de276e0149fb0d492756295980863bd2efb61527a
SHA512

f6020c66cfd533ce15e29bed6507ad13d65fc0909bc497c66c316f81c40f571ec5495050d28910dc21b579a6898a50ee8e9f88fc7362a29e85698c147f61d7c9
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5ax+Nz:z6QFElP6n+gKmddpMOtEvwDpj9aYas

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3620	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3200-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b30-13.dat	upx
behavioral2/memory/3200-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3620-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_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 3200 wrote to memory of 3620	3200	2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe	85
PID 3200 wrote to memory of 3620	3200	2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe	85
PID 3200 wrote to memory of 3620	3200	2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_cfe89a16af54d0d4d6cc376e363cc839_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3200
- 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:3620

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
60KB

MD5
b4eb4cd59df6cf43ad0304b5890265d0

SHA1
93e018769f6802d698db247d56b9baadfab63d58

SHA256
677afb39b7baa0eaaae70d418c2ce7c8c46ffbd5aefd1e10f58db5f7b1077b8a

SHA512
5befd289321ac7aa3a3e72450a382fa9bcdcef7dabcce08948861374661db2c02e8a8d3634bea1404da039c6aa75bf3c966b827baea2f01668cf936562af8754

Download Submit
memory/3200-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3200-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3200-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3200-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3200-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3620-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3620-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3620-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download