Analysis

  • max time kernel
    145s
  • max time network
    142s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-04-2024 05:04

General

  • Target

    e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe

  • Size

    1.9MB

  • MD5

    42ad64483405b6ce53c4966870c902ec

  • SHA1

    c21642320252e799c8fdb2b88acf177254dccacf

  • SHA256

    e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521

  • SHA512

    62624070f30d2095ff53c0dee499c77f00e45c1c251a64cf18f7b885742ea0c5a0f4b931a01ecdbb10303be4763f6e7eb7d315ce13e2b8947df2d7ccbc0c2db0

  • SSDEEP

    49152:JzJDEdJKf9YW60mnIZ8dBbFwSJ9jtFVSu1oU09z8:JzJDGIf9YJ0oI6BBwSRxc

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\e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe
    "C:\Users\Admin\AppData\Local\Temp\e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.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:2184
  • 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:568
    • 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:4896
      • 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:1976
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1192
          • 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\263309122282_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2392
      • 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:1792

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\263309122282_Desktop.zip

      Filesize

      192KB

      MD5

      eb1e230daf8261c0b7c0c1c1625db1ae

      SHA1

      4930da87b20005a7ae8100c0e1fff2c35537f1a8

      SHA256

      a57b4ce5504e020ab941cd229bbba0a5eee8edb4ced8d83e058a1a02cf94cd63

      SHA512

      fe6a0cf681edccbed68673fd569cd2fd5ac048f23c9558f3503c8e0a0169a1e20b9beb3a4c5ad722d4f2c987902cb16394c65d0730af33e22aa1053d2ded2562

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

      Filesize

      1.9MB

      MD5

      42ad64483405b6ce53c4966870c902ec

      SHA1

      c21642320252e799c8fdb2b88acf177254dccacf

      SHA256

      e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521

      SHA512

      62624070f30d2095ff53c0dee499c77f00e45c1c251a64cf18f7b885742ea0c5a0f4b931a01ecdbb10303be4763f6e7eb7d315ce13e2b8947df2d7ccbc0c2db0

    • C:\Users\Admin\AppData\Local\Temp\_Files_\ShowComplete.xlsx

      Filesize

      192KB

      MD5

      37522c840922ff982376e94ff9b35f7d

      SHA1

      2ae5de9b2d6717f9072a9cb13fc779d471e70010

      SHA256

      b996ae20709f7995a64b1210a6152c7f486b7d7509d4a38a0346225a7d6ca083

      SHA512

      c80b1d9fa98594ca83471ef353e49b8e9a93591412bc1b889b796969907f938be79a423e8d48fd96e1a48f4e33c3f66f3117698a01659c8e0bb6e5540663e505

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vklg4fsm.jqg.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/568-18-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-21-0x0000000005180000-0x0000000005181000-memory.dmp

      Filesize

      4KB

    • memory/568-78-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-77-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-76-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-75-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-16-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-63-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-20-0x00000000051A0000-0x00000000051A1000-memory.dmp

      Filesize

      4KB

    • memory/568-79-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-19-0x0000000005190000-0x0000000005191000-memory.dmp

      Filesize

      4KB

    • memory/568-27-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-22-0x00000000051C0000-0x00000000051C1000-memory.dmp

      Filesize

      4KB

    • memory/568-24-0x0000000005170000-0x0000000005171000-memory.dmp

      Filesize

      4KB

    • memory/568-25-0x00000000051E0000-0x00000000051E1000-memory.dmp

      Filesize

      4KB

    • memory/568-26-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-80-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-28-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/568-23-0x0000000005160000-0x0000000005161000-memory.dmp

      Filesize

      4KB

    • memory/568-81-0x0000000000930000-0x0000000000E0A000-memory.dmp

      Filesize

      4.9MB

    • memory/2184-5-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

      Filesize

      4KB

    • memory/2184-14-0x0000000000840000-0x0000000000D1A000-memory.dmp

      Filesize

      4.9MB

    • memory/2184-4-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

      Filesize

      4KB

    • memory/2184-6-0x0000000004C10000-0x0000000004C11000-memory.dmp

      Filesize

      4KB

    • memory/2184-7-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB

    • memory/2184-8-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

      Filesize

      4KB

    • memory/2184-9-0x0000000004C30000-0x0000000004C31000-memory.dmp

      Filesize

      4KB

    • memory/2184-0-0x0000000000840000-0x0000000000D1A000-memory.dmp

      Filesize

      4.9MB

    • memory/2184-2-0x0000000000840000-0x0000000000D1A000-memory.dmp

      Filesize

      4.9MB

    • memory/2184-1-0x0000000077A86000-0x0000000077A88000-memory.dmp

      Filesize

      8KB

    • memory/2184-3-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

      Filesize

      4KB

    • memory/2392-50-0x0000018FB8520000-0x0000018FB8542000-memory.dmp

      Filesize

      136KB

    • memory/2392-61-0x00007FFDF07A0000-0x00007FFDF1262000-memory.dmp

      Filesize

      10.8MB

    • memory/2392-52-0x0000018FD0760000-0x0000018FD0770000-memory.dmp

      Filesize

      64KB

    • memory/2392-55-0x0000018FD06C0000-0x0000018FD06D2000-memory.dmp

      Filesize

      72KB

    • memory/2392-56-0x0000018FD06B0000-0x0000018FD06BA000-memory.dmp

      Filesize

      40KB

    • memory/2392-53-0x0000018FD0760000-0x0000018FD0770000-memory.dmp

      Filesize

      64KB

    • memory/2392-54-0x0000018FD0760000-0x0000018FD0770000-memory.dmp

      Filesize

      64KB

    • memory/2392-51-0x00007FFDF07A0000-0x00007FFDF1262000-memory.dmp

      Filesize

      10.8MB