Analysis

  • max time kernel
    100s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2023 09:28

General

  • Target

    ORDER ENQUIRY.rtf

  • Size

    5KB

  • MD5

    f171857a9cc7939cc152f43316ee30d9

  • SHA1

    50a88884f5cae5469a6558e67fbf3bc12b473a5b

  • SHA256

    74a772134e325f53cb54809a228f2cf32763ecd6138d67160d9ab14f6e65ed4b

  • SHA512

    b4f6b2f8ba31a817ab502bc8332286fc0707ad94ffb254b5e2afdfe5f486fdf9285f33fdecbd9fb973faf4dfbf4ca565547503b8238dd3af4b1e3aa80ecb2216

  • SSDEEP

    96:AiAAwiD2riQQvYMM+nHkWQ8hS+FueiyMolGj1U:pAAwivQQv8W5S+Fue7MolGj1U

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1073351841217261789/NnPDWHoGskysnt_cVO37Yvso4HCKBMX4OJzJQ65V2g-M4gX029QlSHO_kclyL9PXI8Lw

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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\ORDER ENQUIRY.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:828
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:632
    • 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:1708
      • C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe
        "C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe
          "C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • outlook_office_path
          • outlook_win_path
          PID:1720

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe

      Filesize

      693KB

      MD5

      a4104fd5a7cc9acdfa2da784c96d9186

      SHA1

      c3f2485424eafc12d38005124651cd9a601f162f

      SHA256

      ae773800646505a74d624672b6a3bf5d74c92dc78d7d1fdb9df1842d692c21ab

      SHA512

      00cf0806e2553619a782212988bdc6da5ddd95ca1d435d5bcb49933f3129d91670cbff1a8b92a3788216691ddd389ad8220279b47f8354da45d8010752e3e9e7

    • C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe

      Filesize

      693KB

      MD5

      a4104fd5a7cc9acdfa2da784c96d9186

      SHA1

      c3f2485424eafc12d38005124651cd9a601f162f

      SHA256

      ae773800646505a74d624672b6a3bf5d74c92dc78d7d1fdb9df1842d692c21ab

      SHA512

      00cf0806e2553619a782212988bdc6da5ddd95ca1d435d5bcb49933f3129d91670cbff1a8b92a3788216691ddd389ad8220279b47f8354da45d8010752e3e9e7

    • C:\Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe

      Filesize

      693KB

      MD5

      a4104fd5a7cc9acdfa2da784c96d9186

      SHA1

      c3f2485424eafc12d38005124651cd9a601f162f

      SHA256

      ae773800646505a74d624672b6a3bf5d74c92dc78d7d1fdb9df1842d692c21ab

      SHA512

      00cf0806e2553619a782212988bdc6da5ddd95ca1d435d5bcb49933f3129d91670cbff1a8b92a3788216691ddd389ad8220279b47f8354da45d8010752e3e9e7

    • \Users\Admin\AppData\Roaming\rtyuiyouyfgsfreds.exe

      Filesize

      693KB

      MD5

      a4104fd5a7cc9acdfa2da784c96d9186

      SHA1

      c3f2485424eafc12d38005124651cd9a601f162f

      SHA256

      ae773800646505a74d624672b6a3bf5d74c92dc78d7d1fdb9df1842d692c21ab

      SHA512

      00cf0806e2553619a782212988bdc6da5ddd95ca1d435d5bcb49933f3129d91670cbff1a8b92a3788216691ddd389ad8220279b47f8354da45d8010752e3e9e7

    • memory/632-69-0x000007FEFC2E1000-0x000007FEFC2E3000-memory.dmp

      Filesize

      8KB

    • memory/828-54-0x0000000072DD1000-0x0000000072DD4000-memory.dmp

      Filesize

      12KB

    • memory/828-58-0x0000000075C41000-0x0000000075C43000-memory.dmp

      Filesize

      8KB

    • memory/828-57-0x000000007183D000-0x0000000071848000-memory.dmp

      Filesize

      44KB

    • memory/828-82-0x000000007183D000-0x0000000071848000-memory.dmp

      Filesize

      44KB

    • memory/828-66-0x000000007183D000-0x0000000071848000-memory.dmp

      Filesize

      44KB

    • memory/828-81-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/828-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/828-55-0x0000000070851000-0x0000000070853000-memory.dmp

      Filesize

      8KB

    • memory/1092-71-0x0000000005CE0000-0x0000000005D60000-memory.dmp

      Filesize

      512KB

    • memory/1092-72-0x0000000002000000-0x0000000002032000-memory.dmp

      Filesize

      200KB

    • memory/1092-70-0x0000000000520000-0x000000000052C000-memory.dmp

      Filesize

      48KB

    • memory/1092-67-0x0000000000390000-0x00000000003A4000-memory.dmp

      Filesize

      80KB

    • memory/1092-64-0x0000000000820000-0x00000000008D4000-memory.dmp

      Filesize

      720KB

    • memory/1720-73-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1720-74-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1720-76-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1720-77-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1720-78-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB