Analysis

  • max time kernel
    151s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    18-04-2022 16:35

General

  • Target

    061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe

  • Size

    170KB

  • MD5

    6bdd0461ce6cf27ac8ee5615e0da1c70

  • SHA1

    517560e5361084641380f349e005d6e3ce5c3a26

  • SHA256

    061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc

  • SHA512

    bacb364508f71dcbffca34c9481b528e9394fb1d939bc81a810dcacff87d6e9ff8eca8c683dfbc23ee2f76795bb3fda4d5e8089ab3e2d8304f123570fd1f0c84

Malware Config

Extracted

Family

revengerat

Botnet

NyanCatRevenge

C2

hpdndbnb.duckdns.org:2404

Mutex

90a49aa7c27647e

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • Windows security bypass 2 TTPs
  • Drops startup file 2 IoCs
  • Windows security modification 2 TTPs 9 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe
    "C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Windows security modification
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1796
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1628
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:112
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1820
    • C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe
      "C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe"
      2⤵
        PID:1120
      • C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe
        "C:\Users\Admin\AppData\Local\Temp\061f6722784aedb82b0c2ab822c0e08ceaa88bf10eb8aed80bbd4ebd056de9bc.exe"
        2⤵
        • Checks processor information in registry
        PID:632
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 1836
        2⤵
        • Program crash
        PID:1956

    Network

    MITRE ATT&CK Enterprise v6

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      40b43a4158a57293a0a338bdcf273e44

      SHA1

      5b44a2dafd89ceb7f8990714fb8be6e8229d6394

      SHA256

      8b90e97c0f83a1e711c4f7fdc5ef45deab8d1711dfa87e59a45ca66d48ac1a20

      SHA512

      e04e182c513dfeb7bfee6f7a889138896bf881d8f5941066e451dbc4fc2117e1e363428290194f3857fad141ddf597b6256d2306e3a55e155cb41fcbfe39771f

    • memory/112-58-0x0000000000000000-mapping.dmp

    • memory/112-71-0x00000000023F0000-0x000000000303A000-memory.dmp

      Filesize

      12.3MB

    • memory/112-68-0x000000006FF50000-0x00000000704FB000-memory.dmp

      Filesize

      5.7MB

    • memory/632-72-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-78-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-77-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-83-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-75-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-73-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-81-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/632-79-0x000000000040501E-mapping.dmp

    • memory/1312-55-0x0000000000410000-0x0000000000432000-memory.dmp

      Filesize

      136KB

    • memory/1312-54-0x0000000001330000-0x0000000001360000-memory.dmp

      Filesize

      192KB

    • memory/1628-65-0x000000006FF50000-0x00000000704FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1628-57-0x0000000000000000-mapping.dmp

    • memory/1796-70-0x00000000024C0000-0x000000000310A000-memory.dmp

      Filesize

      12.3MB

    • memory/1796-56-0x0000000000000000-mapping.dmp

    • memory/1796-67-0x000000006FF50000-0x00000000704FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1796-59-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

      Filesize

      8KB

    • memory/1820-60-0x0000000000000000-mapping.dmp

    • memory/1820-69-0x000000006FF50000-0x00000000704FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1820-66-0x00000000024E0000-0x000000000312A000-memory.dmp

      Filesize

      12.3MB

    • memory/1956-84-0x0000000000000000-mapping.dmp