df5c34d3fd6a230a7370837901e0982953c57fb371c2419010a1417fa36156dc

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
26/08/2024, 07:04

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General

Target

2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe
Size

97KB
MD5

c6075b4b273010f88fb61f83b94404f0
SHA1

8cd778fc5115a9c8f631b066c751c973f7144edb
SHA256

df5c34d3fd6a230a7370837901e0982953c57fb371c2419010a1417fa36156dc
SHA512

c0afbed7f5f7264a7930926e465b8d6bf64965af6bf4afd18cbbadd66904356cc6f02ff52abfc22f81a880804121247e5baa0a77a7b5bfb408bd86639b3b5ed3
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0+z:AnBdOOtEvwDpj6zY

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3632-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0009000000023448-13.dat	upx
behavioral2/memory/3632-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4936-27-0x0000000000500000-0x000000000050F000-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	2024-08-26_c6075b4b273010f88fb61f83b94404f0_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 3632 wrote to memory of 4936	3632	2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe	84
PID 3632 wrote to memory of 4936	3632	2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe	84
PID 3632 wrote to memory of 4936	3632	2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_c6075b4b273010f88fb61f83b94404f0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3632
- 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:4936

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
97KB

MD5
91738658f286a67bf89fdd988a7dd536

SHA1
6520fd076e0d2fac909b9a1d99ed17d77de9d2e7

SHA256
59c7fb9506e1b302711c16775a79e15c381b0ff627f5fe9e7c673f8cf89b4fe6

SHA512
28352e78c0354d3663e2eeb056f4f3b689d316b3267d9d2a653f88d30bd2d6c0bf0dc8a6aed025c361392f6b6b08b4d9aa70b19c636537d49bfcd7a8a53484d1

Download Submit
memory/3632-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3632-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/3632-2-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/3632-3-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3632-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4936-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4936-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4936-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download