0815ad1c0945f614dbba8ca3525bf97e176568d52eaf7331def7a6c26e94b09b

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
09-10-2024 04:59

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General

Target

2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe
Size

67KB
MD5

fa2195e1249027a0bfe4cc255aaae981
SHA1

d27bc3d3a7c2f579e79bfd9c7ca51b86b254bb90
SHA256

0815ad1c0945f614dbba8ca3525bf97e176568d52eaf7331def7a6c26e94b09b
SHA512

5527673137339adad5311b3439b996a7778e5ed442e6ff6a4a5b9a774a228f8625b510868543a974a1166943cbe56aef950293a652f5f655f5bd28092f76a827
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYZ8xDyfl:1nK6a+qdOOtEvwDpjC

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3744	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4820-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000c000000023b07-13.dat	upx
behavioral2/memory/4820-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/3744-26-0x0000000000500000-0x000000000050F311-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	2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4820 wrote to memory of 3744	4820	2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe	86
PID 4820 wrote to memory of 3744	4820	2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe	86
PID 4820 wrote to memory of 3744	4820	2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_fa2195e1249027a0bfe4cc255aaae981_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820
- 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:3744

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
68KB

MD5
fa88e5a4f4b0c048d0b325f694d71137

SHA1
dba6a13d7c1ba04ab67dad1a0058e6a11f82ece3

SHA256
6d5804d91fea9b8b270c8005b976ba92e20b8d5a8927b14345a61c0df5a92d7f

SHA512
1300450af72f764a5371ed412d6c70f5819a5ffe631507f258a59044faef8a2e6c56c0a8b42c8877ebc92b9f9b05f39d161452bb1c31911586f34729590aa413

Download Submit
memory/3744-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3744-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3744-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4820-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4820-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4820-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4820-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4820-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download