Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 14:33

General

  • Target

    doc023561861500.exe

  • Size

    527KB

  • MD5

    fbdfc962880dc6723d12e0a37f609452

  • SHA1

    99952710f767d51a28c89c0c9ccd0a209796135e

  • SHA256

    3dad11bcdd07ce0d3431ff24364eddac1e4dec7b72f806ed1c6cff7d876524a1

  • SHA512

    aeec86ae64debe692c2fae8444bccee848c1121f4c6e9f5beb51feee325bce6125a2fbe76df767c29499c95974c5cb8d5a0007b54b1fce07e01b8b076128d82e

  • SSDEEP

    12288:Q12/OjGeEWONK/heRoZKWtC3+wM3KFp6G/3iM4VV:5/2GeEWON4hvKJ3+wKKF/GV

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\doc023561861500.exe
    "C:\Users\Admin\AppData\Local\Temp\doc023561861500.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Porcellanidae167=Get-Content 'C:\Users\Admin\AppData\Local\Khutbah\registrant\Kontrre\Aerocolpos.Fje';$Sisell=$Porcellanidae167.SubString(35749,3);.$Sisell($Porcellanidae167)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
        3⤵
          PID:376
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe"
          3⤵
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2540

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\Local\Khutbah\registrant\Kontrre\Aerocolpos.Fje

      Filesize

      54KB

      MD5

      6eb8018d8de33e8ac99cdc0c04117c00

      SHA1

      ad3ef65169a080ff930615016ecd1f0422ad392c

      SHA256

      fd0816b93ce5c6964d0283bb79f704da202a1a17652efd297024a6ba11cf8c29

      SHA512

      4ae9b64e7a996c6ead360457b198ccea0c9bedec9ba8d5a1862e035b3580ac9e9c24a16d7a26ef3c1ac0610ded8c6ece8a2fdafef79f0506b44c62a54da945a6

    • C:\Users\Admin\AppData\Local\Khutbah\registrant\Kontrre\Multihued.Tro

      Filesize

      317KB

      MD5

      ca2739fc2bdade029cab4a3a0075df94

      SHA1

      6ceb34903893aeeb4cf02616bcedb4ed764a5534

      SHA256

      1a4d5c6384ba60903bf5d3dc697c0d04db192a28618178a654781bab00704857

      SHA512

      c84814994ef8fa2a506f04bc876ed2047b11898fad5822baf3726d2dcb507162b5b915d235995fc1f0374a288acd53fd72d8761a3723c8c060233e286e039390

    • C:\Users\Admin\AppData\Local\Temp\Tar83A6.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/2540-28-0x00000000004A0000-0x0000000001502000-memory.dmp

      Filesize

      16.4MB

    • memory/2540-84-0x00000000004A0000-0x0000000001502000-memory.dmp

      Filesize

      16.4MB

    • memory/2540-85-0x00000000004A0000-0x00000000004E2000-memory.dmp

      Filesize

      264KB

    • memory/2848-22-0x0000000074070000-0x000000007461B000-memory.dmp

      Filesize

      5.7MB

    • memory/2848-21-0x0000000074070000-0x000000007461B000-memory.dmp

      Filesize

      5.7MB

    • memory/2848-26-0x00000000066E0000-0x000000000C24C000-memory.dmp

      Filesize

      91.4MB

    • memory/2848-27-0x0000000074070000-0x000000007461B000-memory.dmp

      Filesize

      5.7MB

    • memory/2848-18-0x0000000074071000-0x0000000074072000-memory.dmp

      Filesize

      4KB

    • memory/2848-20-0x0000000074070000-0x000000007461B000-memory.dmp

      Filesize

      5.7MB

    • memory/2848-19-0x0000000074070000-0x000000007461B000-memory.dmp

      Filesize

      5.7MB