Resubmissions

17-03-2023 10:17

230317-mbr8pshf9x 10

16-03-2023 13:49

230316-q42vdsba75 10

16-03-2023 13:38

230316-qxl6csdc9w 10

Analysis

  • max time kernel
    124s
  • max time network
    110s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17-03-2023 10:17

General

  • Target

    gescanntes-Dokument.doc

  • Size

    535.8MB

  • MD5

    10b71d7f695ac3f1a6267d132c825db6

  • SHA1

    02a7b36c21a416b9a2b094a0a3b6eed005673985

  • SHA256

    3695ed0ba836d615bbadea21eefaf5c0b565a4af6aff8c09aba17b3e3dbd2ada

  • SHA512

    6686b2d0f608151b8268991c39e7f39acf1a8f13abc421b8679e1c32e4bd5c96b77e1a7a8ac2e58b011a0bebf5ee187b022bdaeebfa143bc1016ba75eca10303

  • SSDEEP

    12288:XxYDQ8EW+Ba+qKYR08a72L2X0dMzPPqvBUEu3uNsRAPYwT4q3MJ/d:2DPElaSUqqafj9Q4ZJ/d

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • 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\gescanntes-Dokument.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\111921.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\111921.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:732
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\BlzhqUqQQVGgLt\kBFpIcMUJkh.dll"
          4⤵
            PID:1596
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:756
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:880
        • C:\Windows\system32\AUDIODG.EXE
          C:\Windows\system32\AUDIODG.EXE 0x518
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1848

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          Filesize

          61KB

          MD5

          e71c8443ae0bc2e282c73faead0a6dd3

          SHA1

          0c110c1b01e68edfacaeae64781a37b1995fa94b

          SHA256

          95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

          SHA512

          b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          Filesize

          342B

          MD5

          02dfcacc5e96cc5e2b673ff61a685a67

          SHA1

          f0e7bb7d1cc98e09e1911967878cc957c7b084e3

          SHA256

          5019ce193269beb35fc4c3e8891e2d32a3b4b44188c745951f2f85f7b651b926

          SHA512

          0223a53d2ab72ef9cb1501352bc61d1c5fc5489041d0e263bb4d6769eeee0c22368ebc33b1b2e16dde3c49cc868ee057cc68e61f1ef7e794c81c076e8a940b10

        • C:\Users\Admin\AppData\Local\Temp\111921.tmp
          Filesize

          500.5MB

          MD5

          158526a1deea136b3aa47d9760232b2b

          SHA1

          c10d0fc5571d0c614cd31a211e567c3475ef41f5

          SHA256

          a7668de557a819939d7c61ebb1ea4db50b18e3a863c1b8176df0bff5ce4169cc

          SHA512

          a12af0d7906303b48f9c0be58d354a5bf4d765cd71b58891f4d01391cde81854939696eeaa4a7c370ae18e10303e57cbcac161aac9e3583cefb9bd0775c89750

        • C:\Users\Admin\AppData\Local\Temp\111939.zip
          Filesize

          795KB

          MD5

          7200a9fb6680cf36b8284742b2bbe0e3

          SHA1

          ab7f0edb20ba53418705af038907137cd87c6753

          SHA256

          4bf24e067d21602596bfa0d702ab8c881c84612fe5bbcd7ccb295559f96fc539

          SHA512

          c3969295c42d0c2a2ecdd5c71c316946b02e9820af66fc47f4313f43a44a70da3fbeb73617aec5ab0b189790f61c785f73e0b2305893389e684b47cdc8bf7dec

        • C:\Users\Admin\AppData\Local\Temp\Cab565E.tmp
          Filesize

          61KB

          MD5

          fc4666cbca561e864e7fdf883a9e6661

          SHA1

          2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

          SHA256

          10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

          SHA512

          c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

        • C:\Users\Admin\AppData\Local\Temp\Tar57EB.tmp
          Filesize

          161KB

          MD5

          be2bec6e8c5653136d3e72fe53c98aa3

          SHA1

          a8182d6db17c14671c3d5766c72e58d87c0810de

          SHA256

          1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

          SHA512

          0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

        • \Users\Admin\AppData\Local\Temp\111921.tmp
          Filesize

          500.5MB

          MD5

          158526a1deea136b3aa47d9760232b2b

          SHA1

          c10d0fc5571d0c614cd31a211e567c3475ef41f5

          SHA256

          a7668de557a819939d7c61ebb1ea4db50b18e3a863c1b8176df0bff5ce4169cc

          SHA512

          a12af0d7906303b48f9c0be58d354a5bf4d765cd71b58891f4d01391cde81854939696eeaa4a7c370ae18e10303e57cbcac161aac9e3583cefb9bd0775c89750

        • \Users\Admin\AppData\Local\Temp\111921.tmp
          Filesize

          500.5MB

          MD5

          158526a1deea136b3aa47d9760232b2b

          SHA1

          c10d0fc5571d0c614cd31a211e567c3475ef41f5

          SHA256

          a7668de557a819939d7c61ebb1ea4db50b18e3a863c1b8176df0bff5ce4169cc

          SHA512

          a12af0d7906303b48f9c0be58d354a5bf4d765cd71b58891f4d01391cde81854939696eeaa4a7c370ae18e10303e57cbcac161aac9e3583cefb9bd0775c89750

        • memory/732-1692-0x0000000000130000-0x0000000000131000-memory.dmp
          Filesize

          4KB

        • memory/1596-1698-0x0000000000200000-0x0000000000201000-memory.dmp
          Filesize

          4KB

        • memory/1928-87-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-91-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-65-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-64-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-62-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-66-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-67-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-68-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-69-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-72-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-73-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-71-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-74-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-75-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-77-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-78-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-79-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-80-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-81-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-82-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-83-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-84-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-85-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-86-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-60-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-88-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-89-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-90-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-92-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-63-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-93-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-95-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-97-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-98-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-99-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-100-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-101-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-102-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-96-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-104-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-105-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-107-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-106-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-109-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-110-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-108-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-103-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-94-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-76-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-70-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-111-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-112-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-1455-0x0000000006440000-0x0000000006441000-memory.dmp
          Filesize

          4KB

        • memory/1928-61-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-59-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-58-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-57-0x0000000000440000-0x0000000000540000-memory.dmp
          Filesize

          1024KB

        • memory/1928-1693-0x0000000006440000-0x0000000006441000-memory.dmp
          Filesize

          4KB

        • memory/1928-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
          Filesize

          64KB