Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 07:32

General

  • Target

    67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe

  • Size

    1.8MB

  • MD5

    4c47dd65f71d2ebaa37eca973408c04f

  • SHA1

    4ce54d1779d091ec7d92ae05cab74f98ebbd2f23

  • SHA256

    67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5

  • SHA512

    8c43889aa23c60d33f84f36d74623e589cdc71699e694b3e06748c68d5df668ca28fe9a2b526cffd8e1de3d5d749aef886e4db504e25c85c79a69f6cc780cedb

  • SSDEEP

    49152:JSv5FCYF0k7uvRgqPc1n+oyQ2wKyQDwyIWxK7:ov5UnVPc1+o2wK3VxK

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://193.233.132.167

Attributes
  • install_dir

    4d0ab15804

  • install_file

    chrosha.exe

  • strings_key

    1a9519d7b465e1f4880fa09a6162d768

  • url_paths

    /enigma/index.php

rc4.plain

Signatures

  • Amadey

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe
    "C:\Users\Admin\AppData\Local\Temp\67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4840
  • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:456
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4552
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5100
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2376
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\084619521222_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3616
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:5072

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Unsecured Credentials

    3
    T1552

    Credentials In Files

    2
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
      Filesize

      1.8MB

      MD5

      4c47dd65f71d2ebaa37eca973408c04f

      SHA1

      4ce54d1779d091ec7d92ae05cab74f98ebbd2f23

      SHA256

      67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5

      SHA512

      8c43889aa23c60d33f84f36d74623e589cdc71699e694b3e06748c68d5df668ca28fe9a2b526cffd8e1de3d5d749aef886e4db504e25c85c79a69f6cc780cedb

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vpl5vhqt.455.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll
      Filesize

      109KB

      MD5

      154c3f1334dd435f562672f2664fea6b

      SHA1

      51dd25e2ba98b8546de163b8f26e2972a90c2c79

      SHA256

      5f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f

      SHA512

      1bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll
      Filesize

      1.2MB

      MD5

      f35b671fda2603ec30ace10946f11a90

      SHA1

      059ad6b06559d4db581b1879e709f32f80850872

      SHA256

      83e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7

      SHA512

      b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705

    • memory/456-31-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-20-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-78-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-77-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-80-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-65-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-81-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-82-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-30-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-83-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-19-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-79-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/456-21-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
      Filesize

      4KB

    • memory/456-26-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
      Filesize

      4KB

    • memory/456-25-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
      Filesize

      4KB

    • memory/456-24-0x0000000004F90000-0x0000000004F91000-memory.dmp
      Filesize

      4KB

    • memory/456-23-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
      Filesize

      4KB

    • memory/456-22-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
      Filesize

      4KB

    • memory/456-27-0x0000000005020000-0x0000000005021000-memory.dmp
      Filesize

      4KB

    • memory/456-28-0x0000000005010000-0x0000000005011000-memory.dmp
      Filesize

      4KB

    • memory/456-29-0x0000000000EB0000-0x0000000001371000-memory.dmp
      Filesize

      4.8MB

    • memory/3616-57-0x0000021A613B0000-0x0000021A613C2000-memory.dmp
      Filesize

      72KB

    • memory/3616-58-0x0000021A61390000-0x0000021A6139A000-memory.dmp
      Filesize

      40KB

    • memory/3616-64-0x00007FF8153B0000-0x00007FF815E71000-memory.dmp
      Filesize

      10.8MB

    • memory/3616-44-0x0000021A48D50000-0x0000021A48D72000-memory.dmp
      Filesize

      136KB

    • memory/3616-56-0x0000021A60F40000-0x0000021A60F50000-memory.dmp
      Filesize

      64KB

    • memory/3616-54-0x00007FF8153B0000-0x00007FF815E71000-memory.dmp
      Filesize

      10.8MB

    • memory/3616-55-0x0000021A60F40000-0x0000021A60F50000-memory.dmp
      Filesize

      64KB

    • memory/4840-11-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
      Filesize

      4KB

    • memory/4840-0-0x0000000000EA0000-0x0000000001361000-memory.dmp
      Filesize

      4.8MB

    • memory/4840-16-0x0000000000EA0000-0x0000000001361000-memory.dmp
      Filesize

      4.8MB

    • memory/4840-10-0x0000000004CE0000-0x0000000004CE1000-memory.dmp
      Filesize

      4KB

    • memory/4840-9-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
      Filesize

      4KB

    • memory/4840-7-0x0000000004C50000-0x0000000004C51000-memory.dmp
      Filesize

      4KB

    • memory/4840-8-0x0000000004C60000-0x0000000004C61000-memory.dmp
      Filesize

      4KB

    • memory/4840-6-0x0000000004CC0000-0x0000000004CC1000-memory.dmp
      Filesize

      4KB

    • memory/4840-4-0x0000000004C90000-0x0000000004C91000-memory.dmp
      Filesize

      4KB

    • memory/4840-5-0x0000000004C70000-0x0000000004C71000-memory.dmp
      Filesize

      4KB

    • memory/4840-3-0x0000000004C80000-0x0000000004C81000-memory.dmp
      Filesize

      4KB

    • memory/4840-2-0x0000000000EA0000-0x0000000001361000-memory.dmp
      Filesize

      4.8MB

    • memory/4840-1-0x0000000077034000-0x0000000077036000-memory.dmp
      Filesize

      8KB