429dd4498c136f3b5d0dc6f547c391ae9ef6706fefbd5ca1ddd5d27a7a96f1b5

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
21/09/2024, 14:25

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General

Target

2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe
Size

69KB
MD5

53bd1f840a5e935da9aeb71ceece316a
SHA1

e2e8012e008def8bab713895e6300869f341638f
SHA256

429dd4498c136f3b5d0dc6f547c391ae9ef6706fefbd5ca1ddd5d27a7a96f1b5
SHA512

8e4cfa812b8c6411289e78b7a8c9086a70957726f2de378e7fbbb8a9f2ba2036d1d57e56c6c0e8749cfc04808e1a82da5b26f0c24e375653bbb9db5bf41eeb0f
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalh:1nK6a+qdOOtEvwDpjw

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4208	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2012-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0008000000023452-13.dat	upx
behavioral2/memory/2012-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/4208-26-0x0000000000500000-0x000000000050F311-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 4208	2012	2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe	82
PID 2012 wrote to memory of 4208	2012	2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe	82
PID 2012 wrote to memory of 4208	2012	2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_53bd1f840a5e935da9aeb71ceece316a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- 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:4208

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
69KB

MD5
b7ee087c854c7f2a7878ff6757a6615c

SHA1
5023e436baa7fad54aed1f7a4d96754e4031140b

SHA256
095564d0ab19ba242680036857a94fd6e48bd13daa4cc4a0cd32d1df0cc49375

SHA512
ecffdfeb94fa8a5675eef69181485c97b6a45d9453369630646a5822de7cbe70b291c5c7b0e8d3d4a4baf39239b10a4f06216c967771ee5111f2126abd574a31

Download Submit
memory/2012-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2012-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2012-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2012-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2012-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4208-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4208-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4208-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download