Analysis

  • max time kernel
    110s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 19:01

General

  • Target

    AprilOrder.doc.rtf

  • Size

    39KB

  • MD5

    15ab40c00a4c0722e193e044ffd6a9a2

  • SHA1

    2a138f2786611a3640ddd5dd704a3f53b858ba9e

  • SHA256

    4610cb0b82c1f82ce2dcd39bef0102534b0e459726262c9e0198bc29b888b29a

  • SHA512

    2514a262d8075d82efa193720c0bb95dbc752a36c70a3d74ae9bced2c4ec041ce3c5fa0a1bdf1a3606e652f9e844849ca91001ee708181ee7f978b4670ac1376

  • SSDEEP

    768:TZwAbZSDfFMnFVIKpcMYRbEJF80vyzsSG0dodrw8Ancw:dwAl0uFVXCMdc0vaEthAncw

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 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\AprilOrder.doc.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:856
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1652
    • 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:308
      • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe
        "C:\Users\Admin\AppData\Roaming\govonordkei5869.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1568
        • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe
          "C:\Users\Admin\AppData\Roaming\govonordkei5869.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1248

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            20KB

            MD5

            733128cd95c21cac6cc04d9b7ded4afd

            SHA1

            91f5c521bb853b29870ef99b70b91af72dca3cd1

            SHA256

            e7591330fb811cabf64254aec65749b53d8954d0662ddd4bcf96ae2e772426ee

            SHA512

            cbce1555aa6cbe2666c9fa16ddf64e7c3040dcda3113c1daac6001f37928872cff1eb4d6901f9fc2de7efcd3f9a6001a634a9f6dc78b6ba0904da1bf79375af5

          • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe

            Filesize

            660KB

            MD5

            eae6dcfa51aaf88ce78a3938b7e7a88e

            SHA1

            f3b341a7304ea5b4a61ac8acf8ad04bf70d3ab7c

            SHA256

            d70e834f81d38b0d032a65d53f232a1ab20524251379fc2ad9145a955a44cc23

            SHA512

            2cad8e3385151eb5c4ea407b51f1c941c17d58ed6955c801527c32f4f0580c8f27457be30987984456f43bc1d9dacabf1dc3f95d9da23c5cab0cb711d461d671

          • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe

            Filesize

            660KB

            MD5

            eae6dcfa51aaf88ce78a3938b7e7a88e

            SHA1

            f3b341a7304ea5b4a61ac8acf8ad04bf70d3ab7c

            SHA256

            d70e834f81d38b0d032a65d53f232a1ab20524251379fc2ad9145a955a44cc23

            SHA512

            2cad8e3385151eb5c4ea407b51f1c941c17d58ed6955c801527c32f4f0580c8f27457be30987984456f43bc1d9dacabf1dc3f95d9da23c5cab0cb711d461d671

          • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe

            Filesize

            660KB

            MD5

            eae6dcfa51aaf88ce78a3938b7e7a88e

            SHA1

            f3b341a7304ea5b4a61ac8acf8ad04bf70d3ab7c

            SHA256

            d70e834f81d38b0d032a65d53f232a1ab20524251379fc2ad9145a955a44cc23

            SHA512

            2cad8e3385151eb5c4ea407b51f1c941c17d58ed6955c801527c32f4f0580c8f27457be30987984456f43bc1d9dacabf1dc3f95d9da23c5cab0cb711d461d671

          • C:\Users\Admin\AppData\Roaming\govonordkei5869.exe

            Filesize

            660KB

            MD5

            eae6dcfa51aaf88ce78a3938b7e7a88e

            SHA1

            f3b341a7304ea5b4a61ac8acf8ad04bf70d3ab7c

            SHA256

            d70e834f81d38b0d032a65d53f232a1ab20524251379fc2ad9145a955a44cc23

            SHA512

            2cad8e3385151eb5c4ea407b51f1c941c17d58ed6955c801527c32f4f0580c8f27457be30987984456f43bc1d9dacabf1dc3f95d9da23c5cab0cb711d461d671

          • \Users\Admin\AppData\Roaming\govonordkei5869.exe

            Filesize

            660KB

            MD5

            eae6dcfa51aaf88ce78a3938b7e7a88e

            SHA1

            f3b341a7304ea5b4a61ac8acf8ad04bf70d3ab7c

            SHA256

            d70e834f81d38b0d032a65d53f232a1ab20524251379fc2ad9145a955a44cc23

            SHA512

            2cad8e3385151eb5c4ea407b51f1c941c17d58ed6955c801527c32f4f0580c8f27457be30987984456f43bc1d9dacabf1dc3f95d9da23c5cab0cb711d461d671

          • memory/856-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/856-109-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1248-79-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-84-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-91-0x0000000001110000-0x0000000001150000-memory.dmp

            Filesize

            256KB

          • memory/1248-90-0x0000000001110000-0x0000000001150000-memory.dmp

            Filesize

            256KB

          • memory/1248-87-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-80-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-81-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-82-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1248-83-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/1248-89-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB

          • memory/1568-73-0x00000000003D0000-0x00000000003E4000-memory.dmp

            Filesize

            80KB

          • memory/1568-76-0x0000000000430000-0x000000000043C000-memory.dmp

            Filesize

            48KB

          • memory/1568-74-0x0000000004DC0000-0x0000000004E00000-memory.dmp

            Filesize

            256KB

          • memory/1568-78-0x0000000000790000-0x00000000007C2000-memory.dmp

            Filesize

            200KB

          • memory/1568-77-0x00000000010C0000-0x000000000112A000-memory.dmp

            Filesize

            424KB

          • memory/1568-72-0x0000000004DC0000-0x0000000004E00000-memory.dmp

            Filesize

            256KB

          • memory/1568-67-0x00000000011D0000-0x000000000127C000-memory.dmp

            Filesize

            688KB