Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08-05-2021 12:16

General

  • Target

    AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe

  • Size

    444KB

  • MD5

    fd442753c3895d868eed72f7854e2fba

  • SHA1

    477dc12f213dd05a15b61207926b478d3a0d04c7

  • SHA256

    aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202

  • SHA512

    1a7ff91196019abe9dfa93bfaca299ecd87693ef173560951b4d55f9d0c66355535bef724de26865205419e7638e57c762e332d7eff85187e9695f0a92e1d0c2

Malware Config

Signatures

  • CrypVault

    Ransomware family which makes encrypted files look like they have been quarantined by AV.

  • Pony,Fareit

    Pony is a Remote Access Trojan application that steals information.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

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

  • Drops startup file 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe
    "C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
      2⤵
        PID:1168
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c ren "C:\Users\Admin\AppData\Local\Temp\CF8C8F" 7za.exe
        2⤵
          PID:1928
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
          2⤵
            PID:1952
          • C:\Users\Admin\AppData\Local\Temp\7za.exe
            "C:\Users\Admin\AppData\Local\Temp\7za.exe" e "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D" -y -p2D4F861D8D
            2⤵
            • Executes dropped EXE
            PID:1720
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
            2⤵
              PID:1204
            • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
              "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.doc"
              2⤵
              • Drops file in Windows directory
              • Modifies Internet Explorer settings
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of SetWindowsHookEx
              PID:1628
              • C:\Windows\splwow64.exe
                C:\Windows\splwow64.exe 12288
                3⤵
                  PID:236
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
                2⤵
                  PID:1624
                • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe
                  "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:648
                  • C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe
                    "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"
                    3⤵
                    • Executes dropped EXE
                    • Drops startup file
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:1636
                    • C:\Windows\SysWOW64\mshta.exe
                      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta"
                      4⤵
                      • Modifies Internet Explorer settings
                      PID:920
                    • C:\Windows\SysWOW64\wbem\WMIC.exe
                      "C:\Windows\System32\wbem\WMIC.exe" process call create "cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures"
                      4⤵
                      • Suspicious use of AdjustPrivilegeToken
                      PID:780
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F
                  2⤵
                    PID:616
                • C:\Windows\system32\cmd.exe
                  cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                  1⤵
                  • Process spawned unexpected child process
                  • Suspicious use of WriteProcessMemory
                  PID:1288
                  • C:\Windows\system32\vssadmin.exe
                    vssadmin.exe delete shadows /all /quiet
                    2⤵
                    • Interacts with shadow copies
                    PID:2000
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit.exe /set {default} recoveryenabled no
                    2⤵
                    • Modifies boot configuration data using bcdedit
                    PID:936
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                    2⤵
                    • Modifies boot configuration data using bcdedit
                    PID:1644
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1684

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/236-98-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp

                  Filesize

                  8KB

                • memory/648-87-0x0000000000280000-0x0000000000285000-memory.dmp

                  Filesize

                  20KB

                • memory/1628-79-0x0000000072791000-0x0000000072794000-memory.dmp

                  Filesize

                  12KB

                • memory/1628-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

                  Filesize

                  64KB

                • memory/1628-80-0x000000006FF41000-0x000000006FF43000-memory.dmp

                  Filesize

                  8KB

                • memory/1628-99-0x000000005FFF0000-0x0000000060000000-memory.dmp

                  Filesize

                  64KB

                • memory/1636-88-0x0000000000400000-0x000000000041A000-memory.dmp

                  Filesize

                  104KB

                • memory/1636-83-0x0000000000400000-0x0000000000E28000-memory.dmp

                  Filesize

                  10.2MB

                • memory/1820-60-0x0000000076641000-0x0000000076643000-memory.dmp

                  Filesize

                  8KB