Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 02:25

General

  • Target

    ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe

  • Size

    721KB

  • MD5

    e12732b1388792e2376b5ceff0813ce1

  • SHA1

    f6d305a5bc1cb57d98778983eb6d5ee21a291d33

  • SHA256

    ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20

  • SHA512

    1c902234221b4640e1bfb95f10d7991b4bc619c0045f574df7f4e1cf75218609547f40b7d26e89add0d72a9a98efba25ad2cb010462745c7956abdda0fdfe8f1

  • SSDEEP

    12288:QvLK1+mw78cPd5nuXjcdJrTxi6LarNLXghQAgVJRGHg9D6nj22J3EUfen9HpzifI:Qvi+mU89cd5di2aBQQAgn/8nj22J0W

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.fedcraw.org.za
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    admin123fed

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe
    "C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bhHKbxRjFutqJP.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bhHKbxRjFutqJP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7F80.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe
      "C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe"
      2⤵
        PID:3148
      • C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe
        "C:\Users\Admin\AppData\Local\Temp\ee82a7d799150b129c7e27b8328e987cabf5de9d204b7e028ae2849d92672e20.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2088

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vrptglcv.uxi.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp7F80.tmp
      Filesize

      1KB

      MD5

      a25e0d9f741dcab8c67efab97baa41e5

      SHA1

      e78581f506aa370a20b196f12cb34ace27cc476f

      SHA256

      ecf31cdea2b2d9c59e3785a1590a66c658cb0e76268013497e29a41d3dfe71f4

      SHA512

      34964381c5e04d9648f60b7905f3c1f3e146ddd6e5d19c59ab98546841a70fbb7bfc9602da50b24230464cbc39c07654808f527f96799b962e16d28a0fe26965

    • memory/2088-69-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/2088-23-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/2088-18-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2088-25-0x0000000005330000-0x0000000005396000-memory.dmp
      Filesize

      408KB

    • memory/2088-24-0x00000000050E0000-0x00000000050F0000-memory.dmp
      Filesize

      64KB

    • memory/2088-62-0x0000000006850000-0x00000000068A0000-memory.dmp
      Filesize

      320KB

    • memory/3368-4-0x0000000007490000-0x00000000074A0000-memory.dmp
      Filesize

      64KB

    • memory/3368-9-0x000000000C150000-0x000000000C1EC000-memory.dmp
      Filesize

      624KB

    • memory/3368-8-0x0000000008BA0000-0x0000000008C22000-memory.dmp
      Filesize

      520KB

    • memory/3368-7-0x00000000073C0000-0x00000000073CC000-memory.dmp
      Filesize

      48KB

    • memory/3368-6-0x0000000007470000-0x000000000748A000-memory.dmp
      Filesize

      104KB

    • memory/3368-5-0x00000000027F0000-0x00000000027FA000-memory.dmp
      Filesize

      40KB

    • memory/3368-1-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/3368-3-0x0000000007320000-0x00000000073B2000-memory.dmp
      Filesize

      584KB

    • memory/3368-2-0x0000000007830000-0x0000000007DD4000-memory.dmp
      Filesize

      5.6MB

    • memory/3368-0-0x0000000000340000-0x00000000003FA000-memory.dmp
      Filesize

      744KB

    • memory/3368-22-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4424-27-0x00000000057F0000-0x0000000005856000-memory.dmp
      Filesize

      408KB

    • memory/4424-54-0x00000000064D0000-0x00000000064EE000-memory.dmp
      Filesize

      120KB

    • memory/4424-26-0x0000000005650000-0x0000000005672000-memory.dmp
      Filesize

      136KB

    • memory/4424-19-0x00000000049B0000-0x00000000049C0000-memory.dmp
      Filesize

      64KB

    • memory/4424-17-0x0000000004FF0000-0x0000000005618000-memory.dmp
      Filesize

      6.2MB

    • memory/4424-37-0x0000000005A00000-0x0000000005D54000-memory.dmp
      Filesize

      3.3MB

    • memory/4424-38-0x0000000005ED0000-0x0000000005EEE000-memory.dmp
      Filesize

      120KB

    • memory/4424-39-0x0000000005F90000-0x0000000005FDC000-memory.dmp
      Filesize

      304KB

    • memory/4424-41-0x000000007F130000-0x000000007F140000-memory.dmp
      Filesize

      64KB

    • memory/4424-40-0x0000000006E90000-0x0000000006EC2000-memory.dmp
      Filesize

      200KB

    • memory/4424-42-0x0000000070C60000-0x0000000070CAC000-memory.dmp
      Filesize

      304KB

    • memory/4424-43-0x00000000049B0000-0x00000000049C0000-memory.dmp
      Filesize

      64KB

    • memory/4424-44-0x00000000049B0000-0x00000000049C0000-memory.dmp
      Filesize

      64KB

    • memory/4424-20-0x00000000049B0000-0x00000000049C0000-memory.dmp
      Filesize

      64KB

    • memory/4424-55-0x0000000006ED0000-0x0000000006F73000-memory.dmp
      Filesize

      652KB

    • memory/4424-56-0x0000000007850000-0x0000000007ECA000-memory.dmp
      Filesize

      6.5MB

    • memory/4424-57-0x0000000007200000-0x000000000721A000-memory.dmp
      Filesize

      104KB

    • memory/4424-58-0x0000000007270000-0x000000000727A000-memory.dmp
      Filesize

      40KB

    • memory/4424-59-0x0000000007480000-0x0000000007516000-memory.dmp
      Filesize

      600KB

    • memory/4424-60-0x0000000007400000-0x0000000007411000-memory.dmp
      Filesize

      68KB

    • memory/4424-61-0x0000000007430000-0x000000000743E000-memory.dmp
      Filesize

      56KB

    • memory/4424-63-0x0000000007440000-0x0000000007454000-memory.dmp
      Filesize

      80KB

    • memory/4424-16-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4424-64-0x0000000007540000-0x000000000755A000-memory.dmp
      Filesize

      104KB

    • memory/4424-65-0x0000000007520000-0x0000000007528000-memory.dmp
      Filesize

      32KB

    • memory/4424-68-0x0000000074FE0000-0x0000000075790000-memory.dmp
      Filesize

      7.7MB

    • memory/4424-14-0x0000000004900000-0x0000000004936000-memory.dmp
      Filesize

      216KB