Analysis

  • max time kernel
    138s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31-03-2024 06:52

General

  • Target

    f9956b53c9df3bfe1252342e29d6a2932bea0b722bf556009f6fffa84bef8726.exe

  • Size

    1.8MB

  • MD5

    754a9b003b49e24c661a0ae381440df8

  • SHA1

    58ea18bbde8ed4c50c206594e6e9613c0d2f8e55

  • SHA256

    f9956b53c9df3bfe1252342e29d6a2932bea0b722bf556009f6fffa84bef8726

  • SHA512

    36a517a856c6025e4a16d96378e94decb50049e190eaf6133248ecd7a514d28d654659d813ecf349a52a422c6f6cf7bf9e97a4784b8ce6138e89198c61618850

  • SSDEEP

    49152:KC4DNboC/hEtu5hpckv2l9tKMK2P3KVgnM0vMp:KJbomKu51+xKG/KVWM0vMp

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/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\f9956b53c9df3bfe1252342e29d6a2932bea0b722bf556009f6fffa84bef8726.exe
    "C:\Users\Admin\AppData\Local\Temp\f9956b53c9df3bfe1252342e29d6a2932bea0b722bf556009f6fffa84bef8726.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:2324
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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:1268
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3744
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:872
          • 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\594324687199_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2744
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:4988

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe

      Filesize

      1.8MB

      MD5

      754a9b003b49e24c661a0ae381440df8

      SHA1

      58ea18bbde8ed4c50c206594e6e9613c0d2f8e55

      SHA256

      f9956b53c9df3bfe1252342e29d6a2932bea0b722bf556009f6fffa84bef8726

      SHA512

      36a517a856c6025e4a16d96378e94decb50049e190eaf6133248ecd7a514d28d654659d813ecf349a52a422c6f6cf7bf9e97a4784b8ce6138e89198c61618850

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4ugfz50g.s2b.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll

      Filesize

      109KB

      MD5

      2afdbe3b99a4736083066a13e4b5d11a

      SHA1

      4d4856cf02b3123ac16e63d4a448cdbcb1633546

      SHA256

      8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee

      SHA512

      d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll

      Filesize

      1.2MB

      MD5

      92fbdfccf6a63acef2743631d16652a7

      SHA1

      971968b1378dd89d59d7f84bf92f16fc68664506

      SHA256

      b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72

      SHA512

      b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117

    • memory/1268-49-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-18-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-75-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-77-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-63-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-54-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-78-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-79-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-80-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-76-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-19-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/1268-21-0x0000000004F70000-0x0000000004F71000-memory.dmp

      Filesize

      4KB

    • memory/1268-20-0x0000000004F80000-0x0000000004F81000-memory.dmp

      Filesize

      4KB

    • memory/1268-22-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

      Filesize

      4KB

    • memory/1268-23-0x0000000004F50000-0x0000000004F51000-memory.dmp

      Filesize

      4KB

    • memory/1268-24-0x0000000004F60000-0x0000000004F61000-memory.dmp

      Filesize

      4KB

    • memory/1268-25-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

      Filesize

      4KB

    • memory/1268-26-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

      Filesize

      4KB

    • memory/1268-27-0x0000000000630000-0x0000000000AF2000-memory.dmp

      Filesize

      4.8MB

    • memory/2324-10-0x0000000004B40000-0x0000000004B41000-memory.dmp

      Filesize

      4KB

    • memory/2324-6-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

      Filesize

      4KB

    • memory/2324-1-0x00000000773E6000-0x00000000773E8000-memory.dmp

      Filesize

      8KB

    • memory/2324-2-0x0000000000050000-0x0000000000512000-memory.dmp

      Filesize

      4.8MB

    • memory/2324-4-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

      Filesize

      4KB

    • memory/2324-0-0x0000000000050000-0x0000000000512000-memory.dmp

      Filesize

      4.8MB

    • memory/2324-5-0x0000000004B20000-0x0000000004B21000-memory.dmp

      Filesize

      4KB

    • memory/2324-3-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

      Filesize

      4KB

    • memory/2324-9-0x0000000004B50000-0x0000000004B51000-memory.dmp

      Filesize

      4KB

    • memory/2324-7-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

      Filesize

      4KB

    • memory/2324-15-0x0000000000050000-0x0000000000512000-memory.dmp

      Filesize

      4.8MB

    • memory/2324-8-0x0000000004B00000-0x0000000004B01000-memory.dmp

      Filesize

      4KB

    • memory/2744-62-0x00007FFC81AB0000-0x00007FFC82572000-memory.dmp

      Filesize

      10.8MB

    • memory/2744-56-0x00000295C9A30000-0x00000295C9A3A000-memory.dmp

      Filesize

      40KB

    • memory/2744-55-0x00000295C9A40000-0x00000295C9A52000-memory.dmp

      Filesize

      72KB

    • memory/2744-53-0x00000295C9940000-0x00000295C9950000-memory.dmp

      Filesize

      64KB

    • memory/2744-52-0x00000295C9940000-0x00000295C9950000-memory.dmp

      Filesize

      64KB

    • memory/2744-51-0x00000295C9940000-0x00000295C9950000-memory.dmp

      Filesize

      64KB

    • memory/2744-50-0x00000295C99C0000-0x00000295C99E2000-memory.dmp

      Filesize

      136KB

    • memory/2744-48-0x00007FFC81AB0000-0x00007FFC82572000-memory.dmp

      Filesize

      10.8MB