Resubmissions

28-02-2021 17:05

210228-pjgnbjwth2 8

27-02-2021 12:13

210227-bpkha5za7s 8

27-02-2021 04:19

210227-7c1xkzg346 10

27-02-2021 03:32

210227-2xwvzgykxs 8

27-02-2021 03:29

210227-qgrlcph782 8

27-02-2021 03:16

210227-k82qfdjlve 8

27-02-2021 02:45

210227-mjxh7bv4wj 8

27-02-2021 02:23

210227-w6qfkjy5ha 8

27-02-2021 02:06

210227-r385kvgs32 8

26-02-2021 23:10

210226-yds8gthfax 8

Analysis

  • max time kernel
    33s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    27-02-2021 02:45

General

  • Target

    Doc_3744.xls

  • Size

    62KB

  • MD5

    47e22049644647ee854cedfe077156e7

  • SHA1

    20ad9f47616a8272dece2ec1039a88c09412c97c

  • SHA256

    5f2adacaf4ecb00ed24dd9dfe355307d0d6e786e40c945ad4c6d1ae3a4835d2a

  • SHA512

    1eeb87173378f4d0e157ee42f5b28e48ff84a35b44d71f004a6180cc2bdbc09e45c071adc7ab0a94c75071fbe3ee13b939ee8cb216b6f2e06c9c24ca34dbbf1b

Score
8/10

Malware Config

Signatures

  • Modifies RDP port number used by Windows 1 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks registry for disk virtualization 3 TTPs 1 IoCs

    Detecting virtualization disks is order done to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 5 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Checks processor information in registry 2 TTPs 29 IoCs

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

  • Enumerates system info in registry 2 TTPs 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Doc_3744.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1088
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\system32\reg.exe
      reg export HKLM file.txt
      2⤵
      • Checks BIOS information in registry
      • Checks registry for disk virtualization
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Enumerates system info in registry
      PID:1212
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:848 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1052
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
    1⤵
      PID:876
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
      1⤵
        PID:1412

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        MD5

        e92176b0889cc1bb97114beb2f3c1728

        SHA1

        ad1459d390ec23ab1c3da73ff2fbec7fa3a7f443

        SHA256

        58a4f38ba43f115ba3f465c311eaaf67f43d92e580f7f153de3ab605fc9900f3

        SHA512

        cd2267ba2f08d2f87538f5b4f8d3032638542ac3476863a35f0df491eb3a84458ce36c06e8c1bd84219f5297b6f386748e817945a406082fa8e77244ec229d8f

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

        MD5

        cfd2aad2c03ca02b81e05cc92296dd60

        SHA1

        3b52a213af245470560e55d492e83256572b0fbb

        SHA256

        f667f584d67cbf5acbda0d70846ce9fbad6c77ce99d5b4b728edae157d6a6605

        SHA512

        c60976b30536b79683c8fd32f2d1587d55ab53727357d846bea7aad080d2eb9ce4d39b034ec295d7b40e702502970a9a93a433f0ce16688388374b394f0fbddd

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\s7iy1jn\imagestore.dat

        MD5

        ff98b03809d95c587e106eb6daf6f1fc

        SHA1

        a69056871d74005aa7750a759a65081173f96815

        SHA256

        55c25ee5717b6a2878ccceee7487a4d95e50df0abba2303b62717c2975618886

        SHA512

        92cee910a9e2396b7b947811e5e2f1b68a63e3828027b5493ed4b96b6ba04231f64696e00a2b72ab5dd8342fbabf2825bd8b1ea0b3e21a6ff2a807e6f99fb4c4

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\JOSP0LNC.txt

        MD5

        bb41c5a41614fb4bc538722750a83cbb

        SHA1

        ac657f87025fc513cb48021eee38264f9159101e

        SHA256

        51f668f7fc5add3c54017807e8352486664cf6e31dfe91c0a529f5495cffafc4

        SHA512

        0922c68f01e8b11d2271e6d8874d71052096efd4655a18477709b664595f8eb5e8953510649406556bd29d7e12aaacc2fb4a175001281e2bd9307af362214fb8

      • C:\Users\Admin\file.txt

        MD5

        37372b7830294083c5c61d87356b4db8

        SHA1

        11c31014f3d7ff54be5a7c62a96cc92c1b988776

        SHA256

        e16b57c0f8c76acf3bfc58e0f5c492fb064e619d5621eecce36f4c928a22103b

        SHA512

        323f11cd0799b047cb7de12227e6127261c7f0eb632128b837d2ab2281eec2afd0ee39ef200ac80385c8a06ecb3b7ad3189e5df2169924499e87d3888cafca3a

      • memory/776-7-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

        Filesize

        2.5MB

      • memory/848-6-0x000007FEFBDA1000-0x000007FEFBDA3000-memory.dmp

        Filesize

        8KB

      • memory/848-9-0x0000000003380000-0x0000000003381000-memory.dmp

        Filesize

        4KB

      • memory/876-11-0x0000000075D61000-0x0000000075D63000-memory.dmp

        Filesize

        8KB

      • memory/1052-8-0x0000000000000000-mapping.dmp

      • memory/1088-2-0x000000002F791000-0x000000002F794000-memory.dmp

        Filesize

        12KB

      • memory/1088-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1088-3-0x00000000715B1000-0x00000000715B3000-memory.dmp

        Filesize

        8KB

      • memory/1212-5-0x0000000000000000-mapping.dmp