Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 01:16

General

  • Target

    2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe

  • Size

    769KB

  • MD5

    57feed0e794464e723981898fd272446

  • SHA1

    de657ee2f6535de98f28bedce9459f1d230584de

  • SHA256

    2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b

  • SHA512

    8131a72c4565d3c2bc92fceab336d17b77ad98d6a04266cc28cc49d77aba16652bfc8cabae961cb7c842a694daed190ffecdb5dc6485612971b8579afd514390

  • SSDEEP

    12288:pdrLbDZaNRpi4CRcc/kyzQNGxE8QuwigctlTcJvmlbXZC5p4GFFrqjdtMhXeuQnY:TLDZMRpSp8wPQ3A1cJ+bY5GG0LMhOb

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.coyspu.com.ar
  • Port:
    465
  • Username:
    [email protected]
  • Password:
    458033

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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 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 3 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe
    "C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    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\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1556
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KEUXiybspPv.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KEUXiybspPv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B69.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4892
    • C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe
      "C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe"
      2⤵
        PID:3228
      • C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe
        "C:\Users\Admin\AppData\Local\Temp\2d3cce8dcff9ecdf6df129ebfc989d7287f6bd9ce30af30789e9d248550b896b.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3788
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=4064 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3844

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_noew1fee.cib.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp5B69.tmp

        Filesize

        1KB

        MD5

        bfde1026f92082dea2eeac2fc4b052b3

        SHA1

        55afd61dc9aea02443a18fdf0f93e30215abfe74

        SHA256

        1b9d2e07d41ae42601f7b7bb64743dc3a4fb33605dc5eb20625763dbc64c7b50

        SHA512

        b5ba7fdd124de8daaf727f4c53d6d3938bdbc4a242bf7dbf1aa8c5b94da38ae001804871fe24c6cdc6f6fdda4f41fe814d84fdd5c358c3bb89bded5140864af8

      • memory/1556-77-0x00000000079F0000-0x0000000007A0A000-memory.dmp

        Filesize

        104KB

      • memory/1556-76-0x0000000008030000-0x00000000086AA000-memory.dmp

        Filesize

        6.5MB

      • memory/1556-91-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-87-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-86-0x0000000007D10000-0x0000000007D18000-memory.dmp

        Filesize

        32KB

      • memory/1556-85-0x0000000007D30000-0x0000000007D4A000-memory.dmp

        Filesize

        104KB

      • memory/1556-82-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-79-0x0000000007C60000-0x0000000007CF6000-memory.dmp

        Filesize

        600KB

      • memory/1556-55-0x0000000071280000-0x00000000712CC000-memory.dmp

        Filesize

        304KB

      • memory/1556-52-0x0000000006710000-0x000000000675C000-memory.dmp

        Filesize

        304KB

      • memory/1556-14-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-15-0x0000000002D10000-0x0000000002D46000-memory.dmp

        Filesize

        216KB

      • memory/1556-17-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-51-0x00000000066D0000-0x00000000066EE000-memory.dmp

        Filesize

        120KB

      • memory/1556-50-0x00000000061B0000-0x0000000006504000-memory.dmp

        Filesize

        3.3MB

      • memory/1556-21-0x0000000005800000-0x0000000005E28000-memory.dmp

        Filesize

        6.2MB

      • memory/1556-70-0x0000000006C90000-0x0000000006CAE000-memory.dmp

        Filesize

        120KB

      • memory/1556-20-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1556-26-0x0000000005F30000-0x0000000005F52000-memory.dmp

        Filesize

        136KB

      • memory/1804-19-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1804-41-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1804-3-0x0000000005240000-0x00000000052D2000-memory.dmp

        Filesize

        584KB

      • memory/1804-5-0x0000000005300000-0x000000000530A000-memory.dmp

        Filesize

        40KB

      • memory/1804-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

        Filesize

        4KB

      • memory/1804-7-0x0000000005340000-0x0000000005362000-memory.dmp

        Filesize

        136KB

      • memory/1804-4-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1804-2-0x0000000005750000-0x0000000005CF4000-memory.dmp

        Filesize

        5.6MB

      • memory/1804-6-0x0000000005560000-0x00000000055FC000-memory.dmp

        Filesize

        624KB

      • memory/1804-11-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

        Filesize

        4KB

      • memory/1804-1-0x0000000000790000-0x0000000000856000-memory.dmp

        Filesize

        792KB

      • memory/1804-10-0x00000000060F0000-0x0000000006176000-memory.dmp

        Filesize

        536KB

      • memory/1804-8-0x0000000005510000-0x000000000551C000-memory.dmp

        Filesize

        48KB

      • memory/1804-9-0x0000000002C30000-0x0000000002C40000-memory.dmp

        Filesize

        64KB

      • memory/3788-81-0x0000000006DD0000-0x0000000006E20000-memory.dmp

        Filesize

        320KB

      • memory/3788-27-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/4060-29-0x0000000005600000-0x0000000005666000-memory.dmp

        Filesize

        408KB

      • memory/4060-78-0x0000000007010000-0x000000000701A000-memory.dmp

        Filesize

        40KB

      • memory/4060-24-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4060-80-0x00000000071B0000-0x00000000071C1000-memory.dmp

        Filesize

        68KB

      • memory/4060-90-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4060-54-0x0000000071280000-0x00000000712CC000-memory.dmp

        Filesize

        304KB

      • memory/4060-83-0x00000000071D0000-0x00000000071DE000-memory.dmp

        Filesize

        56KB

      • memory/4060-53-0x00000000061E0000-0x0000000006212000-memory.dmp

        Filesize

        200KB

      • memory/4060-22-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4060-84-0x00000000071E0000-0x00000000071F4000-memory.dmp

        Filesize

        80KB

      • memory/4060-23-0x0000000074C10000-0x00000000753C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4060-75-0x0000000006C30000-0x0000000006CD3000-memory.dmp

        Filesize

        652KB

      • memory/4060-28-0x0000000004DB0000-0x0000000004E16000-memory.dmp

        Filesize

        408KB