Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-04-2024 16:01

General

  • Target

    1c8105cf7450a8c70da44758b28c48250cb3afbc49b8b6b1db17614c0a0777de.exe

  • Size

    1.8MB

  • MD5

    b12443e562ba3aafa61814481fa175f1

  • SHA1

    f481d69dfba724fb73fe5df811e62302f9d04c09

  • SHA256

    1c8105cf7450a8c70da44758b28c48250cb3afbc49b8b6b1db17614c0a0777de

  • SHA512

    987e8fa1a53f5174916d42a3f787816693b8a1e92e342f18186e5e6a71c0bad7bbe6310da4f426a1e5789aae722fdac505f624bbfd80f7906f50b9a5c7f2ed72

  • SSDEEP

    49152:qm6ZA6DSfJ063UQtFIWJ6xWLx6doqtExY0cdwMFQ69N:ZuAAcmUUMF66AdosdldwMFX

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.

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c8105cf7450a8c70da44758b28c48250cb3afbc49b8b6b1db17614c0a0777de.exe
    "C:\Users\Admin\AppData\Local\Temp\1c8105cf7450a8c70da44758b28c48250cb3afbc49b8b6b1db17614c0a0777de.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:488
  • 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
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2752
    • 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:1180
      • 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:1936
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:808
          • 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\344820275820_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1396
      • 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:3048

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1.8MB

      MD5

      b12443e562ba3aafa61814481fa175f1

      SHA1

      f481d69dfba724fb73fe5df811e62302f9d04c09

      SHA256

      1c8105cf7450a8c70da44758b28c48250cb3afbc49b8b6b1db17614c0a0777de

      SHA512

      987e8fa1a53f5174916d42a3f787816693b8a1e92e342f18186e5e6a71c0bad7bbe6310da4f426a1e5789aae722fdac505f624bbfd80f7906f50b9a5c7f2ed72

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bkavtybn.fqc.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/488-4-0x0000000004F90000-0x0000000004F91000-memory.dmp

      Filesize

      4KB

    • memory/488-5-0x0000000004F70000-0x0000000004F71000-memory.dmp

      Filesize

      4KB

    • memory/488-6-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

      Filesize

      4KB

    • memory/488-7-0x0000000004F50000-0x0000000004F51000-memory.dmp

      Filesize

      4KB

    • memory/488-8-0x0000000004F60000-0x0000000004F61000-memory.dmp

      Filesize

      4KB

    • memory/488-9-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

      Filesize

      4KB

    • memory/488-10-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

      Filesize

      4KB

    • memory/488-15-0x0000000000340000-0x0000000000804000-memory.dmp

      Filesize

      4.8MB

    • memory/488-3-0x0000000004F80000-0x0000000004F81000-memory.dmp

      Filesize

      4KB

    • memory/488-2-0x0000000000340000-0x0000000000804000-memory.dmp

      Filesize

      4.8MB

    • memory/488-0-0x0000000000340000-0x0000000000804000-memory.dmp

      Filesize

      4.8MB

    • memory/488-1-0x00000000774B6000-0x00000000774B8000-memory.dmp

      Filesize

      8KB

    • memory/1396-61-0x00007FFD8E1B0000-0x00007FFD8EC72000-memory.dmp

      Filesize

      10.8MB

    • memory/1396-41-0x00000117EE270000-0x00000117EE292000-memory.dmp

      Filesize

      136KB

    • memory/1396-54-0x00000117EE5D0000-0x00000117EE5E2000-memory.dmp

      Filesize

      72KB

    • memory/1396-55-0x00000117EE500000-0x00000117EE50A000-memory.dmp

      Filesize

      40KB

    • memory/1396-52-0x00000117EE510000-0x00000117EE520000-memory.dmp

      Filesize

      64KB

    • memory/1396-51-0x00000117EE510000-0x00000117EE520000-memory.dmp

      Filesize

      64KB

    • memory/1396-50-0x00007FFD8E1B0000-0x00007FFD8EC72000-memory.dmp

      Filesize

      10.8MB

    • memory/2752-23-0x0000000005640000-0x0000000005641000-memory.dmp

      Filesize

      4KB

    • memory/2752-62-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-28-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-24-0x00000000055E0000-0x00000000055E1000-memory.dmp

      Filesize

      4KB

    • memory/2752-27-0x0000000005660000-0x0000000005661000-memory.dmp

      Filesize

      4KB

    • memory/2752-26-0x0000000005670000-0x0000000005671000-memory.dmp

      Filesize

      4KB

    • memory/2752-19-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-53-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-20-0x0000000005610000-0x0000000005611000-memory.dmp

      Filesize

      4KB

    • memory/2752-21-0x0000000005620000-0x0000000005621000-memory.dmp

      Filesize

      4KB

    • memory/2752-25-0x00000000055F0000-0x00000000055F1000-memory.dmp

      Filesize

      4KB

    • memory/2752-22-0x0000000005600000-0x0000000005601000-memory.dmp

      Filesize

      4KB

    • memory/2752-63-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-18-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-75-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-76-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-77-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-78-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-79-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-80-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-81-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-82-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB

    • memory/2752-83-0x0000000000DA0000-0x0000000001264000-memory.dmp

      Filesize

      4.8MB