Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24/05/2024, 05:09

General

  • Target

    7b044d66c7fcbc3d3bf6f5d52e96d3b2.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 7 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 1 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\7b044d66c7fcbc3d3bf6f5d52e96d3b2.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:2512
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2252
    • 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:2340
      • 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:628
        • 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:2760

    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

            387c879ccffbae41eaaaa1b705cfc70a

            SHA1

            0e64c16b9a87f3f79c05e965fd997270044171c4

            SHA256

            45b3785249bd5ab861478ec14fba58984a567846076d1ca3d9ffce6e5401dffa

            SHA512

            cf3c7bea134c19eb14a3226ddd60c3b63e5083892035e0d15d7c254ae3e566251ff6c9efb2f3a213e1c2599ee2da9e167b7a1b212d2f013ce5089948050ec9cf

          • C:\Users\Admin\AppData\Local\Temp\Cab2280.tmp

            Filesize

            65KB

            MD5

            ac05d27423a85adc1622c714f2cb6184

            SHA1

            b0fe2b1abddb97837ea0195be70ab2ff14d43198

            SHA256

            c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

            SHA512

            6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

          • C:\Users\Admin\AppData\Local\Temp\Tar23B0.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

            7831a5179a87f8f4dbb97b0529146a4f

            SHA1

            e3d67aba565ab077017f63d3d534dbfabf6e542c

            SHA256

            036c204f889da9b75f3d756c6a956e20746387be5f18ba803e31b37e2cf19ef9

            SHA512

            f28c4bbf1919fcc27972fff358fda4be98e422bf08e62f6f2a27ab2155ee8c0c2506e6df20c96343f8e75dfe1c7d99082760a1edc525704cbf96838834997b14

          • memory/2512-0-0x000000002FFF1000-0x000000002FFF2000-memory.dmp

            Filesize

            4KB

          • memory/2512-2-0x000000007171D000-0x0000000071728000-memory.dmp

            Filesize

            44KB

          • memory/2512-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2512-124-0x000000007171D000-0x0000000071728000-memory.dmp

            Filesize

            44KB

          • memory/2512-142-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2760-122-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2760-121-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2760-120-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB