Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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.

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 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
    • Suspicious use of FindShellTrayWindow
    PID:2300
  • 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
    • Checks computer location settings
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3216
    • 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:4400
      • 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:60
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2260
          • 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\045580317372_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:404
      • 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:3196

    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_swe4m3hd.qkl.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/404-65-0x00007FFB80870000-0x00007FFB81331000-memory.dmp

      Filesize

      10.8MB

    • memory/404-59-0x000001D269E50000-0x000001D269E5A000-memory.dmp

      Filesize

      40KB

    • memory/404-58-0x000001D26C3E0000-0x000001D26C3F2000-memory.dmp

      Filesize

      72KB

    • memory/404-56-0x000001D26A020000-0x000001D26A030000-memory.dmp

      Filesize

      64KB

    • memory/404-57-0x000001D26A020000-0x000001D26A030000-memory.dmp

      Filesize

      64KB

    • memory/404-55-0x000001D26A020000-0x000001D26A030000-memory.dmp

      Filesize

      64KB

    • memory/404-54-0x00007FFB80870000-0x00007FFB81331000-memory.dmp

      Filesize

      10.8MB

    • memory/404-49-0x000001D269CA0000-0x000001D269CC2000-memory.dmp

      Filesize

      136KB

    • memory/2300-11-0x0000000005530000-0x0000000005531000-memory.dmp

      Filesize

      4KB

    • memory/2300-0-0x00000000000F0000-0x00000000005B2000-memory.dmp

      Filesize

      4.8MB

    • memory/2300-1-0x0000000077D14000-0x0000000077D16000-memory.dmp

      Filesize

      8KB

    • memory/2300-2-0x00000000000F0000-0x00000000005B2000-memory.dmp

      Filesize

      4.8MB

    • memory/2300-3-0x00000000054E0000-0x00000000054E1000-memory.dmp

      Filesize

      4KB

    • memory/2300-4-0x00000000054F0000-0x00000000054F1000-memory.dmp

      Filesize

      4KB

    • memory/2300-5-0x00000000054D0000-0x00000000054D1000-memory.dmp

      Filesize

      4KB

    • memory/2300-6-0x0000000005520000-0x0000000005521000-memory.dmp

      Filesize

      4KB

    • memory/2300-8-0x00000000054C0000-0x00000000054C1000-memory.dmp

      Filesize

      4KB

    • memory/2300-16-0x00000000000F0000-0x00000000005B2000-memory.dmp

      Filesize

      4.8MB

    • memory/2300-7-0x00000000054B0000-0x00000000054B1000-memory.dmp

      Filesize

      4KB

    • memory/2300-9-0x0000000005510000-0x0000000005511000-memory.dmp

      Filesize

      4KB

    • memory/2300-10-0x0000000005540000-0x0000000005541000-memory.dmp

      Filesize

      4KB

    • memory/3216-26-0x0000000005210000-0x0000000005211000-memory.dmp

      Filesize

      4KB

    • memory/3216-20-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-43-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-29-0x0000000005280000-0x0000000005281000-memory.dmp

      Filesize

      4KB

    • memory/3216-28-0x0000000005290000-0x0000000005291000-memory.dmp

      Filesize

      4KB

    • memory/3216-27-0x0000000005260000-0x0000000005261000-memory.dmp

      Filesize

      4KB

    • memory/3216-25-0x0000000005200000-0x0000000005201000-memory.dmp

      Filesize

      4KB

    • memory/3216-21-0x0000000005230000-0x0000000005231000-memory.dmp

      Filesize

      4KB

    • memory/3216-24-0x0000000005270000-0x0000000005271000-memory.dmp

      Filesize

      4KB

    • memory/3216-23-0x0000000005220000-0x0000000005221000-memory.dmp

      Filesize

      4KB

    • memory/3216-22-0x0000000005240000-0x0000000005241000-memory.dmp

      Filesize

      4KB

    • memory/3216-30-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-66-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-67-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-19-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-79-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-80-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-81-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-82-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-83-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-84-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB

    • memory/3216-85-0x00000000005E0000-0x0000000000AA2000-memory.dmp

      Filesize

      4.8MB