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General

  • Target

    bc1f7ca5b344ac935361475d3a386ca9c17ae5b856e1028622d2a7131d6eb666.exe

  • Size

    1.8MB

  • Sample

    250327-er95fsyrt2

  • MD5

    d5f6e39b19e5b45d9953d4cb1401cc51

  • SHA1

    c20f5112e5c6743247c3aa2939bbac098e7df551

  • SHA256

    bc1f7ca5b344ac935361475d3a386ca9c17ae5b856e1028622d2a7131d6eb666

  • SHA512

    b63a89ec0df2dd5c836e03d5c4f2b74acd5444499ac728eb66d9cc55d892b85819ceb10c98bb96067170fa4d0ac34cc72c3f839e8f4c1c740d7e50d27e6fb298

  • SSDEEP

    24576:kUAfrVg7JIB/RwQTo1ozluw6kJ4AoZRvMfyTY/e63AlMYe/t4SHd4lU55eoyyT0O:7Af5g766QTNv6i4Zrng2lMff9Pei0

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://176.113.115.7/mine/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://176.113.115.7/mine/random.exe

Extracted

Family

amadey

Version

5.21

Botnet

092155

C2

http://176.113.115.6

Attributes
  • install_dir

    bb556cff4a

  • install_file

    rapes.exe

  • strings_key

    a131b127e996a898cd19ffb2d92e481b

  • url_paths

    /Ni9kiput/index.php

rc4.plain

Extracted

Family

xworm

Version

5.0

C2

b.strongest.network:22394

Mutex

arwpWzcFwkBy2ZX1

Attributes
  • Install_directory

    %AppData%

  • install_file

    MsWin32tart.exe

aes.plain

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://176.113.115.7/mine/random.exe

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

fromrussia2

C2

85.192.56.180:4449

Mutex

fromlove

Attributes
  • delay

    120

  • install

    true

  • install_file

    WMIRegistrationService.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      bc1f7ca5b344ac935361475d3a386ca9c17ae5b856e1028622d2a7131d6eb666.exe

    • Size

      1.8MB

    • MD5

      d5f6e39b19e5b45d9953d4cb1401cc51

    • SHA1

      c20f5112e5c6743247c3aa2939bbac098e7df551

    • SHA256

      bc1f7ca5b344ac935361475d3a386ca9c17ae5b856e1028622d2a7131d6eb666

    • SHA512

      b63a89ec0df2dd5c836e03d5c4f2b74acd5444499ac728eb66d9cc55d892b85819ceb10c98bb96067170fa4d0ac34cc72c3f839e8f4c1c740d7e50d27e6fb298

    • SSDEEP

      24576:kUAfrVg7JIB/RwQTo1ozluw6kJ4AoZRvMfyTY/e63AlMYe/t4SHd4lU55eoyyT0O:7Af5g766QTNv6i4Zrng2lMff9Pei0

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Detect Xworm Payload

    • Detects Healer an antivirus disabler dropper

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Possible privilege escalation attempt

    • Sets service image path in registry

    • Stops running service(s)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks