Analysis

  • max time kernel
    134s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 02:04

General

  • Target

    d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe

  • Size

    656KB

  • MD5

    9a05d55ccc3067e67255765a19eb1588

  • SHA1

    a58a46f3eab7de03d61c2dcee4a166bb18d57d1e

  • SHA256

    d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a

  • SHA512

    670f450283e15dbfa19950a6aa782e761cbd968629e22c5c88a90ec2625f3e51289c521cc75489fac4f47351d261a01c9f80f4b9bb4b67850254bcfea81b5a1a

  • SSDEEP

    12288:I9zi8LkpEaHNnwCzGkzV2oRO7bPIVsFdsq7gUn/5Cnc+NZu1SOKjjE/zMEOp:I92jEewC6r7bPaYl7Fn/jOrOK8bMEO

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ifeanyi@12

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 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
  • 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.

  • 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe
    "C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3216
    • 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\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RFrrpJl.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RFrrpJl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6012.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3864
    • C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe
      "C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe"
      2⤵
        PID:5000
      • C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe
        "C:\Users\Admin\AppData\Local\Temp\d094541214cfd198a1fdc69f068681427c9143ce04a25aeb2a64a807195bcb4a.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1644

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      fdeaf0ffbfbde581f764035916c1f29c

      SHA1

      91582f6757e7a090f8777429b37c45e592a069a7

      SHA256

      17b502711e599fda51b5770b406acb8a50ba7e72037125da5b49b6b2a9c8dfdf

      SHA512

      d88de324eacad5a9c528e274b99bbc0d5c7a56403ce76296b46c49f4c66a758a4b5f351adfc3b4fe3fc576ada4c3f271babc1f64507628e2b5c6a902ed8ef101

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d5lwi2nq.ln0.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp6012.tmp

      Filesize

      1KB

      MD5

      c544a3cb3e6427f33f1d5ac4e28ea7cc

      SHA1

      e69d7607185e372a41eef2846f454ef0b00e8f9b

      SHA256

      3a0bcf999a0dd04480baaf7285d83f3bd76694fe7a209f3dc90c748b796996bf

      SHA512

      74ae96567f8951ff3484febc1c9ec1646b794e0d843cd690893470bc86fc4d2fb0db3a9ebc9947f964ab9426605a233d3a2a74d971790728a833b6133c7e0757

    • memory/1644-44-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1644-88-0x0000000006790000-0x00000000067E0000-memory.dmp

      Filesize

      320KB

    • memory/1804-87-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1804-64-0x00000000718E0000-0x000000007192C000-memory.dmp

      Filesize

      304KB

    • memory/1804-79-0x0000000007B40000-0x0000000007B5A000-memory.dmp

      Filesize

      104KB

    • memory/1804-42-0x0000000005F10000-0x0000000006264000-memory.dmp

      Filesize

      3.3MB

    • memory/1804-14-0x0000000004F00000-0x0000000004F36000-memory.dmp

      Filesize

      216KB

    • memory/1804-16-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1804-15-0x0000000005690000-0x0000000005CB8000-memory.dmp

      Filesize

      6.2MB

    • memory/1804-17-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1804-78-0x0000000007A40000-0x0000000007A54000-memory.dmp

      Filesize

      80KB

    • memory/1804-19-0x0000000005520000-0x0000000005542000-memory.dmp

      Filesize

      136KB

    • memory/1804-21-0x0000000005CC0000-0x0000000005D26000-memory.dmp

      Filesize

      408KB

    • memory/1804-22-0x0000000005DA0000-0x0000000005E06000-memory.dmp

      Filesize

      408KB

    • memory/2648-43-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2648-63-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

      Filesize

      104KB

    • memory/2648-86-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2648-80-0x00000000071D0000-0x00000000071D8000-memory.dmp

      Filesize

      32KB

    • memory/2648-77-0x00000000070E0000-0x00000000070EE000-memory.dmp

      Filesize

      56KB

    • memory/2648-18-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2648-76-0x00000000070B0000-0x00000000070C1000-memory.dmp

      Filesize

      68KB

    • memory/2648-48-0x0000000005BA0000-0x0000000005BEC000-memory.dmp

      Filesize

      304KB

    • memory/2648-47-0x0000000005770000-0x000000000578E000-memory.dmp

      Filesize

      120KB

    • memory/2648-50-0x00000000718E0000-0x000000007192C000-memory.dmp

      Filesize

      304KB

    • memory/2648-49-0x0000000006160000-0x0000000006192000-memory.dmp

      Filesize

      200KB

    • memory/2648-60-0x0000000006120000-0x000000000613E000-memory.dmp

      Filesize

      120KB

    • memory/2648-61-0x0000000006DD0000-0x0000000006E73000-memory.dmp

      Filesize

      652KB

    • memory/2648-37-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2648-75-0x0000000007130000-0x00000000071C6000-memory.dmp

      Filesize

      600KB

    • memory/2648-62-0x0000000007500000-0x0000000007B7A000-memory.dmp

      Filesize

      6.5MB

    • memory/2648-74-0x0000000006F20000-0x0000000006F2A000-memory.dmp

      Filesize

      40KB

    • memory/3216-7-0x0000000005090000-0x00000000050A0000-memory.dmp

      Filesize

      64KB

    • memory/3216-46-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-6-0x0000000005310000-0x000000000532A000-memory.dmp

      Filesize

      104KB

    • memory/3216-0-0x000000007514E000-0x000000007514F000-memory.dmp

      Filesize

      4KB

    • memory/3216-5-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-8-0x00000000063D0000-0x0000000006452000-memory.dmp

      Filesize

      520KB

    • memory/3216-4-0x0000000004E10000-0x0000000004E1A000-memory.dmp

      Filesize

      40KB

    • memory/3216-3-0x0000000004E60000-0x0000000004EF2000-memory.dmp

      Filesize

      584KB

    • memory/3216-9-0x0000000008A20000-0x0000000008ABC000-memory.dmp

      Filesize

      624KB

    • memory/3216-2-0x0000000005370000-0x0000000005914000-memory.dmp

      Filesize

      5.6MB

    • memory/3216-1-0x0000000000360000-0x000000000040A000-memory.dmp

      Filesize

      680KB