Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2024, 03:52

General

  • Target
    AmazonSetup.exe
  • Size 2.8MB
  • Sample240704-ee672avenb
  • SHA256 aa79d46aa459af0d46da380af6481f51369da4c4080a009028e83857dcd844f2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • bitrat

Version
  • 1.34

C2
  • curtisusa.hopto.org:5215

Attributes
  • communication_password

    ee342c2505c08512ed898d3855498f1a

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 20 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 12 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AmazonSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\AmazonSetup.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\LIXVoWXPPCyc5Jy.exe
      "C:\Users\Admin\AppData\Local\Temp\LIXVoWXPPCyc5Jy.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AGbGTkAzcl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF90E.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:864
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
        "{path}"
        3⤵
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1708
    • C:\Users\Admin\AppData\Local\Temp\AmazonGamesSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\AmazonGamesSetup.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 1efed1171a92e8a8aecebc0b2f190a9d948e7d634190bfe8aa2189432b59d93b
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 d3c12856a15e6af27e088895cbebbb3423e3b2c93a684d9cb38f8b56b0b7a333
        • MD5 SHA1 SHA512

        Cab2915.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab2915.tmp
        • Size 68KB
        • SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
        • MD5 SHA1 SHA512 SSDEEP

        Tar29B8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar29B8.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        tmpF90E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpF90E.tmp
        • Size 1KB
        • SHA256 bd6d4198504e847efd8f900b8666b2606a225736de94f27e89aea51e73267ebb
        • MD5 SHA1 SHA512

        AmazonGamesSetup.exe

        • Path \Users\Admin\AppData\Local\Temp\AmazonGamesSetup.exe
        • Size 1.8MB
        • SHA256 1a99f1054e51fe86416c59e5c526d69776fdabd7bb9831dbaab8582322121c7a
        • MD5 SHA1 SHA512 SSDEEP

        LIXVoWXPPCyc5Jy.exe

        • Path \Users\Admin\AppData\Local\Temp\LIXVoWXPPCyc5Jy.exe
        • Size 2.5MB
        • SHA256 d9aa21479a1a55d57839aee6310cd6853b2bc5215337aa72316a96f7be7ff3e5
        • MD5 SHA1 SHA512 SSDEEP

        memory/1708-418-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-407-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-742-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-743-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-383-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-387-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-392-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-391-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-628-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-385-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-390-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-389-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/1708-406-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-629-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-413-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-419-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-487-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-438-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-439-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-447-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-446-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1708-486-0x0000000000400000-0x00000000007E4000-memory.dmp

        memory/1760-13-0x00000000745D1000-0x00000000745D2000-memory.dmp

        memory/1760-14-0x00000000745D0000-0x0000000074B7B000-memory.dmp

        memory/1760-393-0x00000000745D0000-0x0000000074B7B000-memory.dmp

        memory/1760-15-0x00000000745D0000-0x0000000074B7B000-memory.dmp

        memory/1760-317-0x00000000745D0000-0x0000000074B7B000-memory.dmp