0e207dd5d85b68a7d2857f8108802ce2e9c86724d4f5f1d97c2605ded7487f09

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 06:25

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General

Target

2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe
Size

85KB
MD5

6157124f857ddec93a780e24abdbf2ea
SHA1

288128d1a9ab90a313a574b3e393f2735f0600b3
SHA256

0e207dd5d85b68a7d2857f8108802ce2e9c86724d4f5f1d97c2605ded7487f09
SHA512

1db0d5878bfaad9c406a6e6640313c5668230fda1f3cd942015f335095ac58c63855ea6465ea9424715fc0a7b292399851d53173e45766bc5084d6e19bf69768
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgcfm:AnBdOOtEvwDpj6z/

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3964	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1220-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x00090000000233f9-13.dat	upx
behavioral2/memory/1220-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/3964-27-0x0000000000500000-0x000000000050F000-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	2024-09-27_6157124f857ddec93a780e24abdbf2ea_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 1220 wrote to memory of 3964	1220	2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe	82
PID 1220 wrote to memory of 3964	1220	2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe	82
PID 1220 wrote to memory of 3964	1220	2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_6157124f857ddec93a780e24abdbf2ea_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- 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:3964

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
86KB

MD5
35c84571ffdcf635a6ec4400b0c2115f

SHA1
7b61965f420c7bea9bb5976847499309ddf3a991

SHA256
03682dc5db439453b4286a5ec6f1e79ee2169ec7aba1738bb274230229820845

SHA512
4e47b667e8ff11f784e9678d7d0313768437926ddefeff9568ee2e8b1d15e5dc68d53cdc6f08bebf17014b9e643c0b0cbf4cc4cf4189414b9d7df3c1e824d7ba

Download Submit
memory/1220-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1220-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1220-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1220-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1220-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3964-20-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/3964-26-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3964-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download