Analysis

  • max time kernel
    125s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-09-2024 20:32

General

  • Target

    Zahlungsbestätigung.exe

  • Size

    1.6MB

  • MD5

    f711e5126f671f7a3b4e124bd553bcdb

  • SHA1

    8ab7bcc77eee7973845299edc8209e7a94c3cc4b

  • SHA256

    80c7d29a1d98676c27132672175396193cb92ee30bdcfbf6a6c0ceb41b3d9616

  • SHA512

    af8c950452169d34a5d56761b20f1968cf99577211668d9f9aa8511d5076fa330b0653a58fcde7ececd8ad5695acffa0460f13affc48831222646c5e4e4fcd6e

  • SSDEEP

    24576:keq3CCnM8MvCqPS9mL04ya8zoKUjXpjXssz3POkTqiB/:zCnTMK2+mcroKUjXNXNZ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7000875199:AAGcJDBHFcfVUBvhBO4xZLw34OXk1NWXSe0/

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.

  • 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.

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.exe
    "C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.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:4912
    • 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\Zahlungsbestätigung.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GFoZjxH.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GFoZjxH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp894F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3524
    • C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.exe
      "C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.exe"
      2⤵
        PID:4088
      • C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.exe
        "C:\Users\Admin\AppData\Local\Temp\Zahlungsbestätigung.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3404
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,11251706013556949551,5157034131170452377,262144 --variations-seed-version --mojo-platform-channel-handle=4188 /prefetch:8
      1⤵
        PID:4380

      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

        cff7a1952ada758c4c20d2ce9b798c1d

        SHA1

        7d1eacc9853826f32fb4c1286a76d59d08abebbc

        SHA256

        326f8b256b4a4a75f00d1db9c83e198d46e4f846371f0773cb12c9c202390bd1

        SHA512

        68e4728f2c238b9f47c64f18015de9968f68321c22a620b5d18952c7d3cc21ba13a4dbe17c7c1cb4d7954a22e220c041e7ee47817bb79f7efe56d3e2d157f419

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hkralq22.udw.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp894F.tmp

        Filesize

        1KB

        MD5

        edfbc42dfb8afad79e2c978b94c99ae6

        SHA1

        451f8a1bf135fd566aa3e8d0eef78d9bea1c45d7

        SHA256

        70e8ff9416d794b4a160bf0cde0fcf3dbbf8e20a1bd482baebb03af91e341ce1

        SHA512

        541271215efd56da5800a4a78f2429c3079ff28a5c0f72fe3749cf71ccdea1747de74ed10a25a171b007c4d7e841c045564a0c4fced727cb2c6eaef0b89a0ca5

      • memory/804-24-0x0000000006030000-0x0000000006096000-memory.dmp

        Filesize

        408KB

      • memory/804-82-0x0000000007D20000-0x0000000007D34000-memory.dmp

        Filesize

        80KB

      • memory/804-77-0x0000000007D60000-0x0000000007DF6000-memory.dmp

        Filesize

        600KB

      • memory/804-66-0x0000000071A00000-0x0000000071A4C000-memory.dmp

        Filesize

        304KB

      • memory/804-22-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/804-25-0x00000000060A0000-0x0000000006106000-memory.dmp

        Filesize

        408KB

      • memory/804-83-0x0000000007E20000-0x0000000007E3A000-memory.dmp

        Filesize

        104KB

      • memory/804-15-0x00000000051F0000-0x0000000005226000-memory.dmp

        Filesize

        216KB

      • memory/804-16-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/804-17-0x0000000005990000-0x0000000005FB8000-memory.dmp

        Filesize

        6.2MB

      • memory/804-18-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/804-90-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/804-21-0x0000000005810000-0x0000000005832000-memory.dmp

        Filesize

        136KB

      • memory/3404-46-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/3404-79-0x00000000067B0000-0x0000000006800000-memory.dmp

        Filesize

        320KB

      • memory/4388-63-0x0000000007630000-0x00000000076D3000-memory.dmp

        Filesize

        652KB

      • memory/4388-81-0x0000000007BB0000-0x0000000007BC4000-memory.dmp

        Filesize

        80KB

      • memory/4388-65-0x0000000007970000-0x000000000798A000-memory.dmp

        Filesize

        104KB

      • memory/4388-64-0x0000000007FB0000-0x000000000862A000-memory.dmp

        Filesize

        6.5MB

      • memory/4388-35-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4388-91-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4388-84-0x0000000007C90000-0x0000000007C98000-memory.dmp

        Filesize

        32KB

      • memory/4388-45-0x00000000061B0000-0x0000000006504000-memory.dmp

        Filesize

        3.3MB

      • memory/4388-49-0x0000000006640000-0x000000000665E000-memory.dmp

        Filesize

        120KB

      • memory/4388-50-0x0000000006BA0000-0x0000000006BEC000-memory.dmp

        Filesize

        304KB

      • memory/4388-51-0x0000000006C30000-0x0000000006C62000-memory.dmp

        Filesize

        200KB

      • memory/4388-52-0x0000000071A00000-0x0000000071A4C000-memory.dmp

        Filesize

        304KB

      • memory/4388-62-0x0000000006C10000-0x0000000006C2E000-memory.dmp

        Filesize

        120KB

      • memory/4388-20-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4388-80-0x0000000007BA0000-0x0000000007BAE000-memory.dmp

        Filesize

        56KB

      • memory/4388-19-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4388-78-0x0000000007B70000-0x0000000007B81000-memory.dmp

        Filesize

        68KB

      • memory/4388-76-0x00000000079E0000-0x00000000079EA000-memory.dmp

        Filesize

        40KB

      • memory/4912-6-0x0000000005570000-0x000000000560C000-memory.dmp

        Filesize

        624KB

      • memory/4912-7-0x0000000005520000-0x000000000552E000-memory.dmp

        Filesize

        56KB

      • memory/4912-9-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4912-1-0x0000000000800000-0x00000000008D4000-memory.dmp

        Filesize

        848KB

      • memory/4912-10-0x0000000007F00000-0x0000000007F84000-memory.dmp

        Filesize

        528KB

      • memory/4912-5-0x0000000005340000-0x000000000534A000-memory.dmp

        Filesize

        40KB

      • memory/4912-4-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4912-48-0x0000000075330000-0x0000000075AE0000-memory.dmp

        Filesize

        7.7MB

      • memory/4912-3-0x0000000005290000-0x0000000005322000-memory.dmp

        Filesize

        584KB

      • memory/4912-2-0x0000000005840000-0x0000000005DE4000-memory.dmp

        Filesize

        5.6MB

      • memory/4912-0-0x000000007533E000-0x000000007533F000-memory.dmp

        Filesize

        4KB

      • memory/4912-8-0x000000007533E000-0x000000007533F000-memory.dmp

        Filesize

        4KB