Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/09/2024, 02:10

General

  • Target

    b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe

  • Size

    936KB

  • MD5

    92e31906e68e746776729036b82e59a1

  • SHA1

    40f9317b50000be6b391d07911e68f2a206a98f8

  • SHA256

    b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41

  • SHA512

    4f2ccbe7df1b29faef95c3199ed9cdc103bd66af4ba7efc8905cad9a33bc8deefd6b31a9f898b2780bfeb3e02b08f962a917edfd9001881afc4eb34db85e9317

  • SSDEEP

    24576:bnUoby03y3pDpO6BAjCC/ntp7ugb8fzW1YYuX0J:bUCcE6+jCCPbugczWZdJ

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 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 WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe
    "C:\Users\Admin\AppData\Local\Temp\b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2648
    • 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\b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2176
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BPBHACGkcaHInS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2572
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BPBHACGkcaHInS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D9C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2564
    • C:\Users\Admin\AppData\Local\Temp\b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe
      "C:\Users\Admin\AppData\Local\Temp\b4930dde2fc721a3d6648831dd4fe2ebd5085e0218864eb48e68e54a69d7cd41.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp3D9C.tmp

          Filesize

          1KB

          MD5

          aeadeec20f3da153b619606d68507c22

          SHA1

          317639c83a1fc45abb07088f6c65771bf1143d54

          SHA256

          373cf767ab802c90e69b871eaf421ebc9b55e3d048e69840332ed06e680c97ef

          SHA512

          d4d1fdfe0b314be3121650698e3f654cfd90c9bae0ada47df179c4b6526c643bedf017834796a1979a7c70e3708cd0658bad7976964ccc1a3d238002d32450ac

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          88d1647893726cbfb1dfcc6ccf5caeaa

          SHA1

          cf029d8782613995cdbbeec3ce019e81b2766658

          SHA256

          6f59ce294782faa0e47e361d1c4a24cb3910bb52e7ba6be3276273785b5eeac8

          SHA512

          6435490196ab2ec3cdc7627c1fe80144f42179628271ad95eb9de1c4416025ef6ceb3c24c33592d6bd7c08ec9caf7d8a4b67511cb86a36c77583a0984df4443a

        • memory/2588-28-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-29-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-21-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-23-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-25-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2588-31-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2588-19-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2648-6-0x0000000005060000-0x00000000050E2000-memory.dmp

          Filesize

          520KB

        • memory/2648-1-0x0000000000840000-0x0000000000930000-memory.dmp

          Filesize

          960KB

        • memory/2648-0-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

          Filesize

          4KB

        • memory/2648-2-0x0000000073D10000-0x00000000743FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2648-3-0x0000000000680000-0x0000000000698000-memory.dmp

          Filesize

          96KB

        • memory/2648-32-0x0000000073D10000-0x00000000743FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2648-5-0x0000000073D10000-0x00000000743FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2648-4-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

          Filesize

          4KB