Analysis

  • max time kernel
    114s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-04-2024 17:29

General

  • Target

    74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe

  • Size

    1017KB

  • MD5

    35c7bcd728b39a9a3195b5fcf01aa796

  • SHA1

    e3b0f50930786ae6a63bae1c25ca7dad5a9c84bd

  • SHA256

    74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde

  • SHA512

    71fa1a8c4678b0897180e652dac0229401c129d051089b884a655cbdf91d2ba331401ba29df19035bb8fa0c6a663222e986b72ad13ed11fcd387a95c4477ba5d

  • SSDEEP

    12288:pmYj5zRYzJ4LbYeq8MSKh7vmgYwafGzOygGGBzi5OznC0kHEhCu:pdj5zezJ4g58MDvYwaOzpM12KCu

Malware Config

Extracted

Credentials

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

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
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe
    "C:\Users\Admin\AppData\Local\Temp\74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3968
    • 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\74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WijfyTL.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WijfyTL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38BE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3336
    • C:\Users\Admin\AppData\Local\Temp\74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe
      "C:\Users\Admin\AppData\Local\Temp\74a7dbf3da213ddbc93bae4a78b29282ad0b1ae0882deddf8a8df553c3f02bde.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4856
  • 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=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4996

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w0dc1byo.xjg.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp38BE.tmp
      Filesize

      1KB

      MD5

      f4b7a65520305cc7219a9e8b6b6553d0

      SHA1

      a7cb6d871f469d8ffe421ed82dd5cdc30aed579c

      SHA256

      e4abeff8297e6b61e53aa40f2bf80a9296bea91c76de1d477ba3056e0b9c0feb

      SHA512

      7bb53ca8e143de2a5d12a7a8a1971be5b2c0a81973ca94712b62f8155782b6d2661cc45d30b2dc6c4d508bfeb6419cc2761756993eff99282ab8ea62a5fea49c

    • memory/3968-32-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/3968-5-0x0000000004F10000-0x0000000004F1A000-memory.dmp
      Filesize

      40KB

    • memory/3968-0-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/3968-1-0x0000000000370000-0x0000000000474000-memory.dmp
      Filesize

      1.0MB

    • memory/3968-6-0x0000000005130000-0x0000000005148000-memory.dmp
      Filesize

      96KB

    • memory/3968-7-0x0000000005150000-0x000000000515E000-memory.dmp
      Filesize

      56KB

    • memory/3968-8-0x0000000005170000-0x0000000005184000-memory.dmp
      Filesize

      80KB

    • memory/3968-9-0x0000000007E50000-0x0000000007EFC000-memory.dmp
      Filesize

      688KB

    • memory/3968-10-0x000000000B440000-0x000000000B4DC000-memory.dmp
      Filesize

      624KB

    • memory/3968-11-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/3968-3-0x0000000004E70000-0x0000000004F02000-memory.dmp
      Filesize

      584KB

    • memory/3968-14-0x0000000005160000-0x0000000005170000-memory.dmp
      Filesize

      64KB

    • memory/3968-2-0x0000000005520000-0x0000000005AC4000-memory.dmp
      Filesize

      5.6MB

    • memory/3968-4-0x0000000005160000-0x0000000005170000-memory.dmp
      Filesize

      64KB

    • memory/4500-62-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-99-0x00000000074F0000-0x00000000074F8000-memory.dmp
      Filesize

      32KB

    • memory/4500-90-0x0000000007270000-0x000000000728A000-memory.dmp
      Filesize

      104KB

    • memory/4500-101-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-104-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4500-97-0x00000000074B0000-0x00000000074C4000-memory.dmp
      Filesize

      80KB

    • memory/4500-94-0x0000000007500000-0x0000000007596000-memory.dmp
      Filesize

      600KB

    • memory/4500-91-0x00000000072D0000-0x00000000072DA000-memory.dmp
      Filesize

      40KB

    • memory/4500-86-0x0000000000970000-0x000000000098E000-memory.dmp
      Filesize

      120KB

    • memory/4500-22-0x00000000050D0000-0x00000000056F8000-memory.dmp
      Filesize

      6.2MB

    • memory/4500-87-0x0000000006570000-0x0000000006613000-memory.dmp
      Filesize

      652KB

    • memory/4500-30-0x0000000005700000-0x0000000005766000-memory.dmp
      Filesize

      408KB

    • memory/4500-60-0x0000000006010000-0x000000000605C000-memory.dmp
      Filesize

      304KB

    • memory/4500-21-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-23-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-66-0x0000000070E40000-0x0000000070E8C000-memory.dmp
      Filesize

      304KB

    • memory/4500-53-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4500-54-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-55-0x0000000002690000-0x00000000026A0000-memory.dmp
      Filesize

      64KB

    • memory/4500-56-0x0000000005A60000-0x0000000005DB4000-memory.dmp
      Filesize

      3.3MB

    • memory/4500-63-0x000000007F830000-0x000000007F840000-memory.dmp
      Filesize

      64KB

    • memory/4500-20-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4788-44-0x0000000002C30000-0x0000000002C40000-memory.dmp
      Filesize

      64KB

    • memory/4788-28-0x0000000005440000-0x0000000005462000-memory.dmp
      Filesize

      136KB

    • memory/4788-61-0x0000000002C30000-0x0000000002C40000-memory.dmp
      Filesize

      64KB

    • memory/4788-12-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4788-105-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4788-64-0x000000007F9E0000-0x000000007F9F0000-memory.dmp
      Filesize

      64KB

    • memory/4788-52-0x0000000002C30000-0x0000000002C40000-memory.dmp
      Filesize

      64KB

    • memory/4788-65-0x0000000000ED0000-0x0000000000F02000-memory.dmp
      Filesize

      200KB

    • memory/4788-72-0x0000000070E40000-0x0000000070E8C000-memory.dmp
      Filesize

      304KB

    • memory/4788-33-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4788-16-0x0000000002BF0000-0x0000000002C26000-memory.dmp
      Filesize

      216KB

    • memory/4788-89-0x0000000007EF0000-0x000000000856A000-memory.dmp
      Filesize

      6.5MB

    • memory/4788-29-0x00000000054E0000-0x0000000005546000-memory.dmp
      Filesize

      408KB

    • memory/4788-59-0x0000000006500000-0x000000000651E000-memory.dmp
      Filesize

      120KB

    • memory/4788-100-0x0000000002C30000-0x0000000002C40000-memory.dmp
      Filesize

      64KB

    • memory/4788-17-0x0000000002C30000-0x0000000002C40000-memory.dmp
      Filesize

      64KB

    • memory/4788-95-0x0000000007920000-0x0000000007931000-memory.dmp
      Filesize

      68KB

    • memory/4788-96-0x0000000007AF0000-0x0000000007AFE000-memory.dmp
      Filesize

      56KB

    • memory/4788-98-0x0000000007BE0000-0x0000000007BFA000-memory.dmp
      Filesize

      104KB

    • memory/4856-25-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/4856-26-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4856-92-0x0000000007090000-0x00000000070E0000-memory.dmp
      Filesize

      320KB

    • memory/4856-31-0x0000000005710000-0x0000000005720000-memory.dmp
      Filesize

      64KB

    • memory/4856-57-0x0000000074910000-0x00000000750C0000-memory.dmp
      Filesize

      7.7MB

    • memory/4856-58-0x0000000005710000-0x0000000005720000-memory.dmp
      Filesize

      64KB