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Analysis

  • max time kernel
    51s
  • max time network
    79s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    30/11/2022, 06:21

General

  • Target

    a6e85e9a4ced3b3473dbee2fba88ba9bf691752a10ef05b7a17af211403b8063.exe

  • Size

    2.0MB

  • MD5

    094d2ed28ba8f460f483e365585b7644

  • SHA1

    bf660d49ad1adc3ae596cf21683509dbbf89e9bc

  • SHA256

    a6e85e9a4ced3b3473dbee2fba88ba9bf691752a10ef05b7a17af211403b8063

  • SHA512

    8c35b7123e338a4cbd590ab7873146e094a98e06d1a631f6bdf2fa5e747696ea36adfe5306e5a8e388b7e6a4ce0d28632b67cdfe545bbb46c26b8dee39034255

  • SSDEEP

    49152:VkTgAdLELdDvSlMLMvvddF2kwJye6TsHWSXI1AWYnEh:VpAdLyd4MLevckGVVHWOI1/yU

Malware Config

Extracted

Family

darkcomet

Botnet

Opfer

C2

panzaknacka.hopto.org:1337

Mutex

MAC-7UVFFZ6

Attributes
  • InstallPath

    MSDCSC\sysdate.exe

  • gencode

    5KLmF0Xbpz15

  • install

    true

  • offline_keylogger

    true

  • password

    l0rn

  • persistence

    false

  • reg_key

    sysdate.exe

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 5 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 15 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6e85e9a4ced3b3473dbee2fba88ba9bf691752a10ef05b7a17af211403b8063.exe
    "C:\Users\Admin\AppData\Local\Temp\a6e85e9a4ced3b3473dbee2fba88ba9bf691752a10ef05b7a17af211403b8063.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
        PID:760
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        2⤵
        • Modifies WinLogon for persistence
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:656
        • C:\Windows\SysWOW64\MSDCSC\sysdate.exe
          "C:\Windows\system32\MSDCSC\sysdate.exe"
          3⤵
          • Executes dropped EXE
          PID:1208
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        2⤵
          PID:1100
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          2⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1956
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
            3⤵
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:324
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
              4⤵
                PID:1952
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
                4⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1492
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
                4⤵
                • Accesses Microsoft Outlook accounts
                PID:880

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\SysWOW64\MSDCSC\sysdate.exe

          Filesize

          1.1MB

          MD5

          34aa912defa18c2c129f1e09d75c1d7e

          SHA1

          9c3046324657505a30ecd9b1fdb46c05bde7d470

          SHA256

          6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

          SHA512

          d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

        • C:\Windows\SysWOW64\MSDCSC\sysdate.exe

          Filesize

          1.1MB

          MD5

          34aa912defa18c2c129f1e09d75c1d7e

          SHA1

          9c3046324657505a30ecd9b1fdb46c05bde7d470

          SHA256

          6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

          SHA512

          d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

        • \Windows\SysWOW64\MSDCSC\sysdate.exe

          Filesize

          1.1MB

          MD5

          34aa912defa18c2c129f1e09d75c1d7e

          SHA1

          9c3046324657505a30ecd9b1fdb46c05bde7d470

          SHA256

          6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

          SHA512

          d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

        • memory/324-108-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-106-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-100-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-131-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-104-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-113-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-112-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-110-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-102-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-107-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/324-105-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/656-147-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-83-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-124-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-101-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-140-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-97-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-85-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-79-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-82-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/656-80-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/880-126-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/880-148-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/880-141-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/880-128-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/1492-119-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1492-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1492-139-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1492-122-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1808-71-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-54-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-72-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-73-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-74-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-76-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-75-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-68-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-62-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-65-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-64-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-66-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-77-0x00000000742E0000-0x000000007488B000-memory.dmp

          Filesize

          5.7MB

        • memory/1808-57-0x0000000075991000-0x0000000075993000-memory.dmp

          Filesize

          8KB

        • memory/1808-58-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-70-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-69-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-78-0x00000000742E0000-0x000000007488B000-memory.dmp

          Filesize

          5.7MB

        • memory/1808-67-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-59-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-95-0x00000000742E0000-0x000000007488B000-memory.dmp

          Filesize

          5.7MB

        • memory/1808-63-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-60-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1808-61-0x0000000000CB0000-0x0000000000EA0000-memory.dmp

          Filesize

          1.9MB

        • memory/1952-117-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/1952-115-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/1952-150-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/1956-92-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/1956-90-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/1956-87-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/1956-86-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/1956-96-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/1956-151-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB