Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    26/09/2024, 13:45

General

  • Target

    Telco32pcsNewPurchaseOrder.exe

  • Size

    968KB

  • MD5

    8d310f2e831174aac8eaa5eba20e87ad

  • SHA1

    600ef55976b69523c7973c5d0aeeb91f3fdcf97e

  • SHA256

    457b6241f125cd8c4f030e7b7f05829b89a5e831f624225cb70ea272ecd88876

  • SHA512

    a8a58d69131ae7b6736af515ad800eebe123df03c8c5b909e24ae64e382f310835f984d045f97aabe11a0f489e614b1d8d516add24d9cfde6f261ca88af75839

  • SSDEEP

    24576:izFcFCG6ra2QIi2zGc9rwZTkfrw6bMfR1q:izFcsG3ZDc9riI0q

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 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 3 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Telco32pcsNewPurchaseOrder.exe
    "C:\Users\Admin\AppData\Local\Temp\Telco32pcsNewPurchaseOrder.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Telco32pcsNewPurchaseOrder.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zBzzGAdzqF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zBzzGAdzqF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7F0F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2576
    • C:\Users\Admin\AppData\Local\Temp\Telco32pcsNewPurchaseOrder.exe
      "C:\Users\Admin\AppData\Local\Temp\Telco32pcsNewPurchaseOrder.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2296

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp7F0F.tmp

          Filesize

          1KB

          MD5

          a4c6ca3e5d2381991518600f8ccb732d

          SHA1

          9b820eba41c7ab4de65c212d0c12b1a7a7d171c9

          SHA256

          50a778f35a63011af5c1cbf16d11f6119211e75d8e1c92dc9666db6afe9cce2e

          SHA512

          f193a1020a53283d5918ff492b777e0c97f65dd16c7b6dc0bef20163c00ac59146830e1ae6c9381165bc50550505cf2da6b181832407036d78a0b67aad8f5826

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\13BNUS4IOLULCCNS8AYT.temp

          Filesize

          7KB

          MD5

          133d4c169b698707b516b90ebaaf3e9b

          SHA1

          5f4ed69bed839e81ad9d4ed1d5057f243dcbf1b6

          SHA256

          f3294e7edf30bff27ff52f99ec3a9d5123e58d8f0323fee8fd142226add13127

          SHA512

          9d5eea1f14715c8b70e0fca5549de5fe7c010021924f12be1f0ce0786b4f7755dcec65709b4af978b7da09f3663802d68150bad2f1e848606e834845c4ca137e

        • memory/2296-29-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-23-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-21-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-26-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2296-28-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-30-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2296-19-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2644-6-0x00000000050D0000-0x0000000005154000-memory.dmp

          Filesize

          528KB

        • memory/2644-1-0x0000000001290000-0x0000000001384000-memory.dmp

          Filesize

          976KB

        • memory/2644-0-0x00000000741CE000-0x00000000741CF000-memory.dmp

          Filesize

          4KB

        • memory/2644-2-0x00000000741C0000-0x00000000748AE000-memory.dmp

          Filesize

          6.9MB

        • memory/2644-3-0x0000000000690000-0x00000000006A2000-memory.dmp

          Filesize

          72KB

        • memory/2644-5-0x00000000741C0000-0x00000000748AE000-memory.dmp

          Filesize

          6.9MB

        • memory/2644-4-0x00000000741CE000-0x00000000741CF000-memory.dmp

          Filesize

          4KB

        • memory/2644-31-0x00000000741C0000-0x00000000748AE000-memory.dmp

          Filesize

          6.9MB