File name:

2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab

Full analysis: https://app.any.run/tasks/0dfb2252-bab1-41df-8fcf-b1ab5c4f30d5
Verdict: Malicious activity
Threats:

Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying.

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Analysis date: March 25, 2025, 05:33:56
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
evasion
grandcrab
ransomware
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, 6 sections
MD5:

800C548FAA5663F6E00144A0CB57F846

SHA1:

7408149C18EA660A8AD9E650B398C50487D3CF24

SHA256:

E1F64081BA9F398C363F27F7EAC5433EE6F254F6A898350E77914C32FC6AFCAA

SSDEEP:

768:Zm5MpFvK8LmFDEuE0umZhfH+dRehemCMG5W/UMlaxvKop2hKjeT2FvpDcziq/pEX:vpF3mBbfedUhemCMGg/iZaqvtE

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • GRANDCRAB mutex has been found

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Changes the autorun value in the registry

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Reads security settings of Internet Explorer

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Checks for external IP

      • svchost.exe (PID: 2196)

  • INFO

    • Reads CPU info

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Checks supported languages

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Creates files or folders in the user directory

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Reads the machine GUID from the registry

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Reads the computer name

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)

    • Checks proxy server information

      • 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe (PID: 7276)
      • slui.exe (PID: 7704)

    • Reads the software policy settings

      • slui.exe (PID: 7704)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.dll | Win32 Dynamic Link Library (generic) (43.5)
.exe | Win32 Executable (generic) (29.8)
.exe | Generic Win/DOS Executable (13.2)
.exe | DOS Executable Generic (13.2)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:03:04 18:10:15+00:00
ImageFileCharacteristics: Executable, 32-bit
PEType: PE32
LinkerVersion: 12
CodeSize: 34304
InitializedDataSize: 36352
UninitializedDataSize: -
EntryPoint: 0x4b20
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
123
Monitored processes
3
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe svchost.exe slui.exe

Process information

PID
CMD
Path
Indicators
Parent process
2196C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\Windows\System32\svchost.exe
services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
7276"C:\Users\admin\Desktop\2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe" C:\Users\admin\Desktop\2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\desktop\2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
7704C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
Total events
3 857
Read events
3 856
Write events
1
Delete events
0

Modification events

(PID) Process:(7276) 2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:bghwzwtuysu
Value:
"C:\Users\admin\AppData\Roaming\Microsoft\astkbq.exe"
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
72762025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exeC:\Users\admin\AppData\Roaming\Microsoft\astkbq.exeexecutable
MD5:46123E7045C9AF745D18747C373B9E7E
SHA256:97F39DF3F0E88C3980EB3A52B6D025B6F9F781EEDFBB7FBF09568DE229A0D94A
72762025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab.exeC:\Users\admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1693682860-607145093-2874071422-1001\0f5007522459c86e95ffcc62f32308f1_bb926e54-e3ca-40fd-ae90-2764341e7792binary
MD5:D898504A722BFF1524134C6AB6A5EAA5
SHA256:878F32F76B159494F5A39F9321616C6068CDB82E88DF89BCC739BBC1EA78E1F9
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
20
DNS requests
6
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2104
svchost.exe
GET
200
23.216.77.42:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
—
—
POST
500
20.83.72.98:443
https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail
unknown
xml
512 b
whitelisted
—
—
POST
500
40.91.76.224:443
https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail
unknown
xml
512 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
—
—
—
whitelisted
2104
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
—
—
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
2104
svchost.exe
23.216.77.42:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
2104
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1676
slui.exe
20.83.72.98:443
activation-v2.sls.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
whitelisted
7704
slui.exe
20.83.72.98:443
activation-v2.sls.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
  • 40.127.240.158
whitelisted
google.com
  • 142.250.181.238
whitelisted
crl.microsoft.com
  • 23.216.77.42
  • 23.216.77.6
  • 23.216.77.28
whitelisted
ipv4bot.whatismyipaddress.com
  • —
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted

Threats

PID
Process
Class
Message
2196
svchost.exe
Device Retrieving External IP Address Detected
ET INFO External IP Lookup Domain in DNS Lookup (whatismyipaddress .com)
No debug info
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Reports
2025-03-25_800c548faa5663f6e00144a0cb57f846_gandcrab