Resubmissions

06-12-2022 13:34

221206-qt7mwscc89 10

06-12-2022 13:32

221206-qs85bsfb5t 10

Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2022 13:32

General

  • Target

    000003_20221206.rtf

  • Size

    3KB

  • MD5

    feb31139c26b083f45bac3fedd811e2d

  • SHA1

    8c2b7d9d9a953a9f944c141498724da53624a12c

  • SHA256

    6b0f67636b41da6d6f69d57dd2b421c140ee5090c168eb09b08357c00eb1963d

  • SHA512

    487bc1ff45089071a6cdfbe9c6637285d7549fc4c011e8ec8fc4827609c531219d3c53b5516e03a48d07b623e7f904fc3f43c48c59a941a31918c5229996eba7

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

h3ha

Decoy

ideas-dulces.store

store1995.store

swuhn.com

ninideal.com

musiqhaus.com

quranchart.com

kszq26.club

lightfx.online

thetickettruth.com

meritloancubk.com

lawnforcement.com

sogeanetwork.com

thedinoexotics.com

kojima-ah.net

gr-myab3z.xyz

platiniuminestor.net

reviewsiske.com

stessil-lifestyle.com

goodqjourney.biz

cirimpianti.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 3 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Suspicious use of SetThreadContext 3 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.

  • NSIS installer 6 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 14 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 9 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1268
    • 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\000003_20221206.rtf"
      2⤵
      • 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:1452
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1960
      • C:\Windows\SysWOW64\autofmt.exe
        "C:\Windows\SysWOW64\autofmt.exe"
        2⤵
          PID:1600
        • C:\Windows\SysWOW64\msiexec.exe
          "C:\Windows\SysWOW64\msiexec.exe"
          2⤵
          • Blocklisted process makes network request
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1684
          • C:\Windows\SysWOW64\cmd.exe
            /c del "C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe"
            3⤵
              PID:1060
        • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
          "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
          1⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Launches Equation Editor
          • Suspicious use of WriteProcessMemory
          PID:980
          • C:\Users\Admin\AppData\Roaming\word.exe
            C:\Users\Admin\AppData\Roaming\word.exe
            2⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1192
            • C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe
              "C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe" C:\Users\Admin\AppData\Local\Temp\ahbdus.k
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:1728
              • C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe
                "C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: MapViewOfSection
                • Suspicious use of AdjustPrivilegeToken
                PID:1556

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Exploitation for Client Execution

        1
        T1203

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\ahbdus.k
          Filesize

          5KB

          MD5

          533b564dd4c64c19e3b7d860f03801a6

          SHA1

          745a017c6f1e58a6b7bea787eb3a20597c17fb62

          SHA256

          25a5b8a00567719024844286427f3fd986a6f72b4ed826bbae58d882c20fd3cd

          SHA512

          e1450a5ea0156db8cb02f359964ba1d279fcd0b8e60c30b8b39b51771e7da0b823a39fa2edcd184bc00152612fa1ae50e1304e7a8fb337102f33455df6372ddf

        • C:\Users\Admin\AppData\Local\Temp\nnfoo.p
          Filesize

          185KB

          MD5

          0fd8fad06f5a97c481fbbb60828d686e

          SHA1

          eab488ae696a31dbd02c959662e356612d5c4c40

          SHA256

          e3a937e8170b273687231c76c7539d1282a6c904df8b44aa249fc52dd09ab518

          SHA512

          b1151c9a8ce0b516879afc6838cb453d68d820ec4743b731974291d402fa0f0416b515b489ee7758de6c975402bd78bb016e9d8342a849157cce4ebc904de7f4

        • C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe
          Filesize

          13KB

          MD5

          f15812c468166ad85fda4223195da140

          SHA1

          4ed0da8b9e738f3d08a0f00270e92a0539e32136

          SHA256

          ac7ebc8987bb3712e198213a0e1fd7f96608b488dc8602f094a7bf4bc0f38e04

          SHA512

          bfcf6d30f1efa8c0a6f8d500782a5b314b0ac811fa4b7a5ebcfb479ca302ca0d8de8fc2c827155def08750d11297974d081781d0dcd4badc01534eb5aaeebdaa

        • C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe
          Filesize

          13KB

          MD5

          f15812c468166ad85fda4223195da140

          SHA1

          4ed0da8b9e738f3d08a0f00270e92a0539e32136

          SHA256

          ac7ebc8987bb3712e198213a0e1fd7f96608b488dc8602f094a7bf4bc0f38e04

          SHA512

          bfcf6d30f1efa8c0a6f8d500782a5b314b0ac811fa4b7a5ebcfb479ca302ca0d8de8fc2c827155def08750d11297974d081781d0dcd4badc01534eb5aaeebdaa

        • C:\Users\Admin\AppData\Local\Temp\zgovbtz.exe
          Filesize

          13KB

          MD5

          f15812c468166ad85fda4223195da140

          SHA1

          4ed0da8b9e738f3d08a0f00270e92a0539e32136

          SHA256

          ac7ebc8987bb3712e198213a0e1fd7f96608b488dc8602f094a7bf4bc0f38e04

          SHA512

          bfcf6d30f1efa8c0a6f8d500782a5b314b0ac811fa4b7a5ebcfb479ca302ca0d8de8fc2c827155def08750d11297974d081781d0dcd4badc01534eb5aaeebdaa

        • C:\Users\Admin\AppData\Roaming\word.exe
          Filesize

          414KB

          MD5

          a0c275ebd1005a313b20dd27ea739dcb

          SHA1

          4c7fb52d3129f485919cf8dd2d8ea3f665e0a6b9

          SHA256

          3077abc4b785271fc43389f94cee024de4fd4d3d7f4ada5c569a9aca09374a9d

          SHA512

          19746c6270d4e54827488b31fa856286e81370c124c2f99b6fddc07311b62baf8969f5bbe433c891f921771e2aa912ad79e5015b97d247600b13eb844c467e6b

        • C:\Users\Admin\AppData\Roaming\word.exe
          Filesize

          414KB

          MD5

          a0c275ebd1005a313b20dd27ea739dcb

          SHA1

          4c7fb52d3129f485919cf8dd2d8ea3f665e0a6b9

          SHA256

          3077abc4b785271fc43389f94cee024de4fd4d3d7f4ada5c569a9aca09374a9d

          SHA512

          19746c6270d4e54827488b31fa856286e81370c124c2f99b6fddc07311b62baf8969f5bbe433c891f921771e2aa912ad79e5015b97d247600b13eb844c467e6b

        • \Users\Admin\AppData\Local\Temp\zgovbtz.exe
          Filesize

          13KB

          MD5

          f15812c468166ad85fda4223195da140

          SHA1

          4ed0da8b9e738f3d08a0f00270e92a0539e32136

          SHA256

          ac7ebc8987bb3712e198213a0e1fd7f96608b488dc8602f094a7bf4bc0f38e04

          SHA512

          bfcf6d30f1efa8c0a6f8d500782a5b314b0ac811fa4b7a5ebcfb479ca302ca0d8de8fc2c827155def08750d11297974d081781d0dcd4badc01534eb5aaeebdaa

        • \Users\Admin\AppData\Local\Temp\zgovbtz.exe
          Filesize

          13KB

          MD5

          f15812c468166ad85fda4223195da140

          SHA1

          4ed0da8b9e738f3d08a0f00270e92a0539e32136

          SHA256

          ac7ebc8987bb3712e198213a0e1fd7f96608b488dc8602f094a7bf4bc0f38e04

          SHA512

          bfcf6d30f1efa8c0a6f8d500782a5b314b0ac811fa4b7a5ebcfb479ca302ca0d8de8fc2c827155def08750d11297974d081781d0dcd4badc01534eb5aaeebdaa

        • \Users\Admin\AppData\Roaming\word.exe
          Filesize

          414KB

          MD5

          a0c275ebd1005a313b20dd27ea739dcb

          SHA1

          4c7fb52d3129f485919cf8dd2d8ea3f665e0a6b9

          SHA256

          3077abc4b785271fc43389f94cee024de4fd4d3d7f4ada5c569a9aca09374a9d

          SHA512

          19746c6270d4e54827488b31fa856286e81370c124c2f99b6fddc07311b62baf8969f5bbe433c891f921771e2aa912ad79e5015b97d247600b13eb844c467e6b

        • memory/1060-83-0x0000000000000000-mapping.dmp
        • memory/1192-62-0x0000000000000000-mapping.dmp
        • memory/1268-94-0x0000000004D30000-0x0000000004E3A000-memory.dmp
          Filesize

          1.0MB

        • memory/1268-90-0x0000000004AB0000-0x0000000004C13000-memory.dmp
          Filesize

          1.4MB

        • memory/1268-89-0x0000000004D30000-0x0000000004E3A000-memory.dmp
          Filesize

          1.0MB

        • memory/1268-80-0x0000000004AB0000-0x0000000004C13000-memory.dmp
          Filesize

          1.4MB

        • memory/1452-58-0x0000000075041000-0x0000000075043000-memory.dmp
          Filesize

          8KB

        • memory/1452-57-0x000000007126D000-0x0000000071278000-memory.dmp
          Filesize

          44KB

        • memory/1452-60-0x000000007126D000-0x0000000071278000-memory.dmp
          Filesize

          44KB

        • memory/1452-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
          Filesize

          64KB

        • memory/1452-55-0x0000000070281000-0x0000000070283000-memory.dmp
          Filesize

          8KB

        • memory/1452-76-0x000000006B911000-0x000000006B913000-memory.dmp
          Filesize

          8KB

        • memory/1452-54-0x0000000072801000-0x0000000072804000-memory.dmp
          Filesize

          12KB

        • memory/1452-84-0x000000006B451000-0x000000006B453000-memory.dmp
          Filesize

          8KB

        • memory/1556-78-0x0000000000C00000-0x0000000000F03000-memory.dmp
          Filesize

          3.0MB

        • memory/1556-79-0x0000000000190000-0x00000000001A4000-memory.dmp
          Filesize

          80KB

        • memory/1556-77-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1556-74-0x000000000041F0D0-mapping.dmp
        • memory/1684-81-0x0000000000000000-mapping.dmp
        • memory/1684-85-0x0000000000A80000-0x0000000000A94000-memory.dmp
          Filesize

          80KB

        • memory/1684-86-0x00000000000F0000-0x000000000011F000-memory.dmp
          Filesize

          188KB

        • memory/1684-87-0x0000000002230000-0x0000000002533000-memory.dmp
          Filesize

          3.0MB

        • memory/1684-88-0x0000000001EF0000-0x0000000001F83000-memory.dmp
          Filesize

          588KB

        • memory/1684-91-0x00000000000F0000-0x000000000011F000-memory.dmp
          Filesize

          188KB

        • memory/1728-67-0x0000000000000000-mapping.dmp
        • memory/1960-92-0x0000000000000000-mapping.dmp
        • memory/1960-93-0x000007FEFBC61000-0x000007FEFBC63000-memory.dmp
          Filesize

          8KB