Analysis

  • max time kernel
    70s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    07-07-2020 09:58

General

  • Target

    Rechnung.jar

  • Size

    471KB

  • MD5

    7b5063e05d789c177bc24c844da2a4a1

  • SHA1

    a853bbe2cb746312633083366b3be77962836bab

  • SHA256

    a0278b5e2100e3858522804b7bd6a13518f0978e8d8758e016bf139f1a8f379d

  • SHA512

    535568aa7905f0b2775266864f2fec6d4a39498417d77f3f56a3592153ee428fc77236f8fc0e025bac6701ee16b5f074ee883ba86ace166b5da41cfc55ecc3b6

Score
7/10

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 120 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Views/modifies file attributes 1 TTPs 8 IoCs
  • Adds Run entry to start application 2 TTPs 4 IoCs
  • Drops desktop.ini file(s) 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\Rechnung.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Adds Run entry to start application
    • Drops desktop.ini file(s)
    • Suspicious use of SetWindowsHookEx
    PID:900
    • C:\Windows\system32\cmd.exe
      cmd.exe
      2⤵
        PID:1612
      • C:\Windows\system32\cmd.exe
        cmd.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:800
        • C:\Windows\System32\Wbem\WMIC.exe
          WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:748
      • C:\Windows\system32\cmd.exe
        cmd.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Windows\System32\Wbem\WMIC.exe
          WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path FirewallProduct Get displayName /Format:List
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1044
      • C:\Windows\system32\attrib.exe
        attrib +h C:\Users\Admin\Oracle
        2⤵
        • Views/modifies file attributes
        PID:1820
      • C:\Windows\system32\attrib.exe
        attrib +h +r +s C:\Users\Admin\.ntusernt.ini
        2⤵
        • Views/modifies file attributes
        PID:1828
      • C:\Windows\system32\attrib.exe
        attrib -s -r C:\Users\Admin\frbJt\Desktop.ini
        2⤵
        • Views/modifies file attributes
        • Drops desktop.ini file(s)
        PID:1836
      • C:\Windows\system32\attrib.exe
        attrib +s +r C:\Users\Admin\frbJt\Desktop.ini
        2⤵
        • Views/modifies file attributes
        • Drops desktop.ini file(s)
        PID:1848
      • C:\Windows\system32\attrib.exe
        attrib -s -r C:\Users\Admin\frbJt
        2⤵
        • Views/modifies file attributes
        PID:1800
      • C:\Windows\system32\attrib.exe
        attrib +s +r C:\Users\Admin\frbJt
        2⤵
        • Views/modifies file attributes
        PID:1784
      • C:\Windows\system32\attrib.exe
        attrib +h C:\Users\Admin\frbJt
        2⤵
        • Views/modifies file attributes
        PID:1808
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r C:\Users\Admin\frbJt\ZeKFA.class
        2⤵
        • Views/modifies file attributes
        PID:1232
      • C:\Windows\system32\cmd.exe
        cmd.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1580
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic /Node:localhost /Namespace:\\root\cimv2 Path Win32_PnpSignedDriver Get /Format:List
          3⤵
            PID:1644

      Network

      MITRE ATT&CK Enterprise v6

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