a2ea7efa45edb0eb7d485ce01c9dc38fe398bd61baffeb3ad592b97834dbc4f8

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, 02:23

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General

Target

2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe
Size

96KB
MD5

0e37067b8f55c0713e78c2a7e6089022
SHA1

1540a7bc87de749b6fb1178d56339409fb3ecd10
SHA256

a2ea7efa45edb0eb7d485ce01c9dc38fe398bd61baffeb3ad592b97834dbc4f8
SHA512

0a016f02fed7a9b244bdd539955402ef8cd1f8ab5fd24bd335362bf8aadf49fbc329158d3fca25746b590a3ba2e240804ba0c9395b805428b9b7ea4ed4b5df6d
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsvil:AnBdOOtEvwDpj6zv

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1528-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000c000000023b62-13.dat	upx
behavioral2/memory/4024-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1528-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4024-27-0x0000000000500000-0x000000000050F000-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	2024-10-13_0e37067b8f55c0713e78c2a7e6089022_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 1528 wrote to memory of 4024	1528	2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe	85
PID 1528 wrote to memory of 4024	1528	2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe	85
PID 1528 wrote to memory of 4024	1528	2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_0e37067b8f55c0713e78c2a7e6089022_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528
- 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:4024

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
96KB

MD5
f9eb331194908eeb6f0d9fb396138b8b

SHA1
9590f32e2bff669a7d5595f15117557aa6092cde

SHA256
b016e2301553a52c549f662bb9bb08885d70a7225756be8cfcb2819448f0f2db

SHA512
3991277d31c839e986a5a18f28a354dd93a07f75384f4e5e4cbba61aed7c541c66bbc829091f0933189a8661c81260e886090f489a20096e4785f5ac3635ee6c

Download Submit
memory/1528-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1528-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1528-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1528-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1528-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4024-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4024-20-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4024-26-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4024-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download