Analysis

  • max time kernel
    145s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-07-2024 06:26

General

  • Target

    file.exe

  • Size

    2.4MB

  • MD5

    acd738c0840861a12f13acff7c6fd7e5

  • SHA1

    113b1470af40d3bd3a2af70f57390ba5d8b1162a

  • SHA256

    dde34f614758e4d68e6732f7de0c9e210e6e8d56d65aae0f2cb1ee5d953d587c

  • SHA512

    28f42d37296b2c36307a186f8900f38b892604fa859f5b74bb4c0a1aa5c40545f7769d65f2731f14ed9aa434029367f7e65e2c1e6d0dec9d1836b38bbd8fa36f

  • SSDEEP

    49152:jghPiN+z8pTtWAF8aLy7JPGc+u0DyWpzGDAhZkWdP8I7u6:mPf4ppWAF8/tu5u8LzGshZt1u

Malware Config

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Signatures

  • Amadey

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

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 12 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Identifies Wine through registry keys 2 TTPs 6 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3580
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe
        "C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe"
        3⤵
        • 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
        • Drops file in Windows directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4892
        • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
          "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
          4⤵
          • 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 use of WriteProcessMemory
          PID:2648
          • C:\Users\Admin\AppData\Local\Temp\1000006001\d6ff4afc7b.exe
            "C:\Users\Admin\AppData\Local\Temp\1000006001\d6ff4afc7b.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:4228
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe
        "C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe"
        3⤵
        • 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
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2704
        • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
          "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
          4⤵
          • 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
          PID:4304
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3020,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=2296 /prefetch:3
    1⤵
      PID:2004
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3016,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=3896 /prefetch:8
      1⤵
        PID:3568
      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
        PID:364
      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
        PID:4416

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      Virtualization/Sandbox Evasion

      2
      T1497

      Credential Access

      Unsecured Credentials

      3
      T1552

      Credentials In Files

      3
      T1552.001

      Discovery

      Query Registry

      6
      T1012

      Virtualization/Sandbox Evasion

      2
      T1497

      System Information Discovery

      4
      T1082

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\mozglue.dll
        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll
        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
        Filesize

        2B

        MD5

        d751713988987e9331980363e24189ce

        SHA1

        97d170e1550eee4afc0af065b78cda302a97674c

        SHA256

        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

        SHA512

        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
        Filesize

        40B

        MD5

        20d4b8fa017a12a108c87f540836e250

        SHA1

        1ac617fac131262b6d3ce1f52f5907e31d5f6f00

        SHA256

        6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

        SHA512

        507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

      • C:\Users\Admin\AppData\Local\Temp\1000006001\d6ff4afc7b.exe
        Filesize

        2.4MB

        MD5

        acd738c0840861a12f13acff7c6fd7e5

        SHA1

        113b1470af40d3bd3a2af70f57390ba5d8b1162a

        SHA256

        dde34f614758e4d68e6732f7de0c9e210e6e8d56d65aae0f2cb1ee5d953d587c

        SHA512

        28f42d37296b2c36307a186f8900f38b892604fa859f5b74bb4c0a1aa5c40545f7769d65f2731f14ed9aa434029367f7e65e2c1e6d0dec9d1836b38bbd8fa36f

      • C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe
        Filesize

        1.8MB

        MD5

        e5063918fa59220d9ed0825cd9db008d

        SHA1

        67ffb0e5b5bb17570693cb5f4ae71f6eb884aa5f

        SHA256

        f7f95df14c2a31de57ed2b10749ff0b10706b7562acd667099243d1c6a754a47

        SHA512

        a42e7418644f042934d2fec087b3e16fe7f7252c3963b3f81762127a7055ada0ffc6fb31699021620b58627f699d2e55e3a94df71d27b6ea216ba76c9574d3d8

      • C:\Windows\Tasks\explorti.job
        Filesize

        288B

        MD5

        59c2804bb51d7b6e05a64bdd3cd7eb93

        SHA1

        18c196c2fc46b0a7ebff9d60bc3de2799222c372

        SHA256

        30ff2585796be46e24c19c063f9b871744221e3cbe3503e8eb64b522bc30d119

        SHA512

        9420bb6dc6e138fc7b580cc861507864118b023fdda237f26537a73152d590ac88c7e914e19354a821ad54f3dab0a65c6ef027c70a15eb37c808812c9651f0d1

      • memory/364-152-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/364-151-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-156-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-154-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-159-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-153-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-150-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-157-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-147-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-146-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-115-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-163-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-164-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-162-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-148-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2648-155-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/2704-125-0x0000000000360000-0x0000000000824000-memory.dmp
        Filesize

        4.8MB

      • memory/2704-102-0x0000000000360000-0x0000000000824000-memory.dmp
        Filesize

        4.8MB

      • memory/3580-0-0x0000000000F00000-0x0000000001AF0000-memory.dmp
        Filesize

        11.9MB

      • memory/3580-83-0x0000000000F00000-0x0000000001AF0000-memory.dmp
        Filesize

        11.9MB

      • memory/3580-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp
        Filesize

        972KB

      • memory/3580-96-0x000000007F190000-0x000000007F561000-memory.dmp
        Filesize

        3.8MB

      • memory/3580-1-0x000000007F190000-0x000000007F561000-memory.dmp
        Filesize

        3.8MB

      • memory/3580-95-0x0000000000F00000-0x0000000001AF0000-memory.dmp
        Filesize

        11.9MB

      • memory/4228-145-0x0000000000230000-0x0000000000E20000-memory.dmp
        Filesize

        11.9MB

      • memory/4228-144-0x0000000000230000-0x0000000000E20000-memory.dmp
        Filesize

        11.9MB

      • memory/4304-126-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/4304-128-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/4416-160-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/4416-161-0x0000000000F40000-0x0000000001404000-memory.dmp
        Filesize

        4.8MB

      • memory/4892-112-0x0000000000D60000-0x0000000001224000-memory.dmp
        Filesize

        4.8MB

      • memory/4892-101-0x0000000000D60000-0x0000000001224000-memory.dmp
        Filesize

        4.8MB

      • memory/4892-90-0x0000000000D60000-0x0000000001224000-memory.dmp
        Filesize

        4.8MB

      • memory/4892-89-0x0000000000D61000-0x0000000000D8F000-memory.dmp
        Filesize

        184KB

      • memory/4892-88-0x00000000773D4000-0x00000000773D6000-memory.dmp
        Filesize

        8KB

      • memory/4892-87-0x0000000000D60000-0x0000000001224000-memory.dmp
        Filesize

        4.8MB