Resubmissions

06-03-2021 22:33

210306-q2ljhhvawj 10

Analysis

  • max time kernel
    60s
  • max time network
    61s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-03-2021 22:33

General

  • Target

    Kaspersky.Fraud.Prevention.For.key.code.generator.by.FFF.exe

  • Size

    8.6MB

  • MD5

    d46996fb525c7f4fdfaea7b01c7e6d38

  • SHA1

    064b4deac49cc4d633f1d287a5b6164d0bf9ea02

  • SHA256

    948472e002f81ae18b98a14df1785c22c0b5c0c1f14f2b0caf1f5887493765c9

  • SHA512

    b5ae0719d1e46bba31c80288855ab82e0020cf353d472985f2eee23cc1d95602bf2cb5f1c0bc80c6f6829532e927d7afba4bc684e52e856ed6dcafe92fce2a83

Malware Config

Extracted

Family

azorult

C2

http://kvaka.li/1210776429.php

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Pony,Fareit

    Pony is a Remote Access Trojan application that steals information.

  • Executes dropped EXE 12 IoCs
  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

  • Loads dropped DLL 1 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.

  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Kaspersky.Fraud.Prevention.For.key.code.generator.by.FFF.exe
    "C:\Users\Admin\AppData\Local\Temp\Kaspersky.Fraud.Prevention.For.key.code.generator.by.FFF.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4024
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen-pr.exe
        keygen-pr.exe -p83fsase3Ge
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:644
        • C:\Users\Admin\AppData\Local\Temp\RarSFX2\key.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX2\key.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4012
          • C:\Users\Admin\AppData\Local\Temp\RarSFX2\key.exe
            C:\Users\Admin\AppData\Local\Temp\RarSFX2\key.exe -txt -scanlocal -file:potato.dat
            5⤵
            • Executes dropped EXE
            PID:4460
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen-step-1.exe
        keygen-step-1.exe
        3⤵
        • Executes dropped EXE
        PID:796
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen-step-3.exe
        keygen-step-3.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen-step-3.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2720
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 3000
            5⤵
            • Runs ping.exe
            PID:4472
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\keygen-step-4.exe
        keygen-step-4.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\file.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\file.exe"
          4⤵
          • Executes dropped EXE
          • Modifies data under HKEY_USERS
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4388
          • C:\Users\Admin\AppData\Roaming\F3BC.tmp.exe
            "C:\Users\Admin\AppData\Roaming\F3BC.tmp.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2952
            • C:\Users\Admin\AppData\Roaming\F3BC.tmp.exe
              "C:\Users\Admin\AppData\Roaming\F3BC.tmp.exe"
              6⤵
              • Executes dropped EXE
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1500
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\RarSFX1\file.exe"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4112
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1
              6⤵
              • Runs ping.exe
              PID:3596
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\Setup.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\Setup.exe"
          4⤵
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Modifies system certificate store
          • Suspicious use of SetWindowsHookEx
          PID:3292
          • C:\Windows\SysWOW64\msiexec.exe
            msiexec.exe /i "C:\Users\Admin\AppData\Local\Temp\gdiview.msi"
            5⤵
            • Enumerates connected drives
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            PID:3400
          • C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe
            C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe 0011 installp1
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2236
          • C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe
            C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe 200 installp1
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4104
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    PID:2464
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 82913485ED5F78072B64B4FCBF81D97C C
      2⤵
      • Loads dropped DLL
      PID:4808

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1500-51-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/1500-47-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/2236-72-0x0000000072570000-0x0000000072603000-memory.dmp

    Filesize

    588KB

  • memory/2952-46-0x00000000030B0000-0x00000000030B1000-memory.dmp

    Filesize

    4KB

  • memory/2952-50-0x0000000002D20000-0x0000000002D65000-memory.dmp

    Filesize

    276KB

  • memory/3292-62-0x0000000010000000-0x000000001033E000-memory.dmp

    Filesize

    3.2MB

  • memory/3292-61-0x0000000072570000-0x0000000072603000-memory.dmp

    Filesize

    588KB

  • memory/4012-45-0x00000000036D0000-0x00000000037BF000-memory.dmp

    Filesize

    956KB

  • memory/4012-55-0x0000000000C70000-0x0000000000C8B000-memory.dmp

    Filesize

    108KB

  • memory/4012-54-0x0000000000C80000-0x0000000000C81000-memory.dmp

    Filesize

    4KB

  • memory/4012-25-0x0000000002DB0000-0x0000000002F4C000-memory.dmp

    Filesize

    1.6MB

  • memory/4104-74-0x0000000072570000-0x0000000072603000-memory.dmp

    Filesize

    588KB

  • memory/4388-43-0x0000000003DD0000-0x0000000003EA2000-memory.dmp

    Filesize

    840KB

  • memory/4388-30-0x00000000005F0000-0x00000000005FD000-memory.dmp

    Filesize

    52KB

  • memory/4460-26-0x0000000000400000-0x0000000000983000-memory.dmp

    Filesize

    5.5MB

  • memory/4460-39-0x0000000000400000-0x0000000000983000-memory.dmp

    Filesize

    5.5MB

  • memory/4692-2-0x0000000002930000-0x0000000002931000-memory.dmp

    Filesize

    4KB