Analysis

  • max time kernel
    132s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/08/2024, 14:21

General

  • Target

    4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe

  • Size

    731KB

  • MD5

    e1aaa1e3dec10d718e4e84910551a653

  • SHA1

    7dd70ebbe1edcb54243f7121078b1d830d2c0037

  • SHA256

    4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a

  • SHA512

    a3628f9dbe9feaf7bbf1aae4a38798ebf811bbe9657c6df2866d1e355fa3200c3f6a69ebeb316ec65109b14e1a77d4967a83904fd168334e2f7d626410257616

  • SSDEEP

    12288:jQKlh08OGQuZLvqJFTP8TQ/8SfwH5ADOfW3jCaFUmMKWOTevZHQxtnAZTrBhe43:4nGQYTqD/DwiKfW3j9UVvZHQTE

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 3 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 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
    "C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4480
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RdkbDKRksCKjc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1ECE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5096
    • C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
      "{path}"
      2⤵
        PID:3068
      • C:\Users\Admin\AppData\Local\Temp\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2264

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4b262f1bd085b52cf50d807380725e06f3728f34ca554c1b364cc88a58f55d8a.exe.log

      Filesize

      1KB

      MD5

      17573558c4e714f606f997e5157afaac

      SHA1

      13e16e9415ceef429aaf124139671ebeca09ed23

      SHA256

      c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

      SHA512

      f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    • C:\Users\Admin\AppData\Local\Temp\tmp1ECE.tmp

      Filesize

      1KB

      MD5

      ea876aa2ad7bdbdc2c4197e070e55a35

      SHA1

      a8ff4d630254fd33e66091d185aae0bd4be9f5e0

      SHA256

      721aac2ee80b485c99589c32aef5bd4371dbd85e087480cb947aa927df1ea115

      SHA512

      a13516bd7f5ee0a0dd536d08b600cc4c10a3c1651e8d38fc68e0493f99c548847336b6261468ac3c6de8823ac6de189b8f624ea7b1dc37f76816260a9f46a23a

    • memory/2264-30-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-29-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-28-0x0000000006B70000-0x0000000006BC0000-memory.dmp

      Filesize

      320KB

    • memory/2264-25-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-24-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-23-0x00000000065B0000-0x0000000006616000-memory.dmp

      Filesize

      408KB

    • memory/2264-22-0x0000000006500000-0x0000000006518000-memory.dmp

      Filesize

      96KB

    • memory/2264-21-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-20-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2264-16-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/4480-6-0x0000000005590000-0x00000000055E6000-memory.dmp

      Filesize

      344KB

    • memory/4480-7-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4480-11-0x0000000006870000-0x00000000068F2000-memory.dmp

      Filesize

      520KB

    • memory/4480-10-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4480-19-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4480-9-0x00000000750DE000-0x00000000750DF000-memory.dmp

      Filesize

      4KB

    • memory/4480-8-0x0000000007F80000-0x0000000007F94000-memory.dmp

      Filesize

      80KB

    • memory/4480-12-0x000000000A4E0000-0x000000000A51C000-memory.dmp

      Filesize

      240KB

    • memory/4480-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

      Filesize

      4KB

    • memory/4480-5-0x0000000005390000-0x000000000539A000-memory.dmp

      Filesize

      40KB

    • memory/4480-4-0x0000000005400000-0x0000000005492000-memory.dmp

      Filesize

      584KB

    • memory/4480-3-0x0000000005910000-0x0000000005EB4000-memory.dmp

      Filesize

      5.6MB

    • memory/4480-2-0x00000000052C0000-0x000000000535C000-memory.dmp

      Filesize

      624KB

    • memory/4480-1-0x0000000000840000-0x00000000008FE000-memory.dmp

      Filesize

      760KB