Analysis

  • max time kernel
    117s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 11:49

General

  • Target

    9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653.rtf

  • Size

    4.1MB

  • MD5

    7b044d66c7fcbc3d3bf6f5d52e96d3b2

  • SHA1

    f671b1d17948e20794bcd209d8ea1c32b1074155

  • SHA256

    9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653

  • SHA512

    b4f1589734e848061bd6680553c5f5cd625533133421681a561980d94f6d64b833920ef055961bb9719e47e78cbf86e3b1c62e41b8fac4044ccb8529aed92018

  • SSDEEP

    24576:+nLjMle4Ywg76KhKdRukZV+Sc7N4angyRulXC1rfw8BVWXNY0nVJqTsocGmShjy2:y

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Blocklisted process makes network request 6 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 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 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 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\9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1196
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2872
    • 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:1296
      • C:\Users\Admin\AppData\Local\Temp\qgjivQDG.exe
        "C:\Users\Admin\AppData\Local\Temp\qgjivQDG.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1928
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Users\Admin\AppData\Local\Temp\qgjivQDG.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1708

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

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

      Filesize

      344B

      MD5

      c386df2efad88f5d45df43ab2f036915

      SHA1

      b6dcab6cdf96c0a7acae7d37cb469f0e8f21122b

      SHA256

      21bf50182d3323e90b81d7b43299c38a81aa6f47bd59a218d90d24204d2ca149

      SHA512

      4293d47c168016b0384cc1a32774f9e7cd3b7778e2de4c3ae93039659780f28a2cca738ee40187d2d6c81e11106c4ed8d57d064fc7f95671df644306b4cbcc4b

    • C:\Users\Admin\AppData\Local\Temp\Cab8A57.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar8C90.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • C:\Users\Admin\AppData\Local\Temp\qgjivQDG.exe

      Filesize

      1.0MB

      MD5

      9efd5e60fd358a4bed2382d3815783ae

      SHA1

      fe4d3df285adc723191609513e4731cc8b4451c6

      SHA256

      379d64cc4cd6991eca9102ffac6209174ae16062ad9af636830a1a4cbb956a04

      SHA512

      0a714db1a7ed40163d74801ef76c69a72fa890fd5cb89dd752c5d8039a6b2aaa448325407ae8eeaf439b3a641bad9ec17de92d3b76e92d75b230f9e15b667697

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      5486af28ccaa2e04ed58dec5621c8a93

      SHA1

      ed48b890124dd4bfcf81882031bff4eac57d2749

      SHA256

      294a5c52991de5e04ebb698f0693d2f559e285427a2480739fb9016edf7e7862

      SHA512

      82a98b3fc73c301bf0e043961bd03b5fca577f3e26bb694910a675734c23de1923a418639e788cc84d32c51a85b9f7db2e3d06028edc54686468cb398d4ffaac

    • memory/1196-0-0x000000002F641000-0x000000002F642000-memory.dmp

      Filesize

      4KB

    • memory/1196-2-0x000000007129D000-0x00000000712A8000-memory.dmp

      Filesize

      44KB

    • memory/1196-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1196-145-0x000000007129D000-0x00000000712A8000-memory.dmp

      Filesize

      44KB

    • memory/1196-163-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1708-131-0x00000000000A0000-0x00000000000E2000-memory.dmp

      Filesize

      264KB

    • memory/1708-139-0x00000000000A0000-0x00000000000E2000-memory.dmp

      Filesize

      264KB

    • memory/1708-132-0x00000000000A0000-0x00000000000E2000-memory.dmp

      Filesize

      264KB

    • memory/1708-136-0x00000000000A0000-0x00000000000E2000-memory.dmp

      Filesize

      264KB