Analysis

  • max time kernel
    97s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 13:17

General

  • Target

    85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2.exe

  • Size

    547KB

  • MD5

    534a9e3a61bbd6f0f7d02aeef95447ca

  • SHA1

    22acf40cad82e517773f2308096b63ecb54f8b53

  • SHA256

    85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2

  • SHA512

    c41c2732b24223ccaa731ea302886427ca7232d39cb75fc0237c535208a32c9fb161f8e76786dabbf66af0b09ef40c94f248eb2b08823c554851d85f371819fd

  • SSDEEP

    12288:QL1LAYtv/h/IMMeFHlpAAM0q+nROj0ree/9Qc1oYppuERrGIgOSdwxb7DysieZ8e:EBdhQMMeFHvMJ+R4QtDQWMMb7D2eZl

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.smjcontrols.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    P@ssw0rd

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 4 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2.exe
    "C:\Users\Admin\AppData\Local\Temp\85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BPrNwjtiJDvRDg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5020
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BPrNwjtiJDvRDg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3786.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3968
    • C:\Users\Admin\AppData\Local\Temp\85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2.exe
      "C:\Users\Admin\AppData\Local\Temp\85ffa93b0f8801f2f65214a567b77ea64a1528ad25b674923ac82ac32244a3f2.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nrqwbjfg.lt3.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp3786.tmp

    Filesize

    1KB

    MD5

    1aeea8167571907fdc222f8b3d026caf

    SHA1

    8a15f162bb00a2ae2429526468886474f642d475

    SHA256

    0da5a5ed02048d27aa8b42014958cd04a0032ea3c8a9f676f7c12947381e0ec6

    SHA512

    54ee68ba361c7b4e4c346ae8f3fe6f61ee3ce0b7b1dfbec00121d4bb6f424042ef334a547a6fc672c96d51913750cee63872fef673db53f37d383c815ce7eebb

  • memory/3996-69-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3996-61-0x00000000067D0000-0x0000000006820000-memory.dmp

    Filesize

    320KB

  • memory/3996-39-0x00000000056F0000-0x0000000005708000-memory.dmp

    Filesize

    96KB

  • memory/3996-23-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/3996-27-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-14-0x0000000007CA0000-0x0000000007D06000-memory.dmp

    Filesize

    408KB

  • memory/4804-6-0x0000000005100000-0x000000000510A000-memory.dmp

    Filesize

    40KB

  • memory/4804-9-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-10-0x0000000007A40000-0x0000000007AC2000-memory.dmp

    Filesize

    520KB

  • memory/4804-0-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/4804-1-0x0000000000660000-0x00000000006F0000-memory.dmp

    Filesize

    576KB

  • memory/4804-2-0x0000000005640000-0x0000000005BE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4804-7-0x0000000005420000-0x0000000005432000-memory.dmp

    Filesize

    72KB

  • memory/4804-3-0x0000000005130000-0x00000000051C2000-memory.dmp

    Filesize

    584KB

  • memory/4804-38-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-8-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/4804-22-0x0000000007AC0000-0x0000000007B02000-memory.dmp

    Filesize

    264KB

  • memory/4804-4-0x00000000051D0000-0x000000000526C000-memory.dmp

    Filesize

    624KB

  • memory/4804-5-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-21-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-54-0x0000000006D40000-0x0000000006DE3000-memory.dmp

    Filesize

    652KB

  • memory/5020-25-0x0000000004E30000-0x0000000004E96000-memory.dmp

    Filesize

    408KB

  • memory/5020-20-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-37-0x0000000005730000-0x0000000005A84000-memory.dmp

    Filesize

    3.3MB

  • memory/5020-19-0x0000000004FC0000-0x00000000055E8000-memory.dmp

    Filesize

    6.2MB

  • memory/5020-40-0x0000000005D50000-0x0000000005D6E000-memory.dmp

    Filesize

    120KB

  • memory/5020-41-0x0000000005DE0000-0x0000000005E2C000-memory.dmp

    Filesize

    304KB

  • memory/5020-42-0x0000000006310000-0x0000000006342000-memory.dmp

    Filesize

    200KB

  • memory/5020-43-0x00000000758C0000-0x000000007590C000-memory.dmp

    Filesize

    304KB

  • memory/5020-53-0x0000000006370000-0x000000000638E000-memory.dmp

    Filesize

    120KB

  • memory/5020-24-0x0000000004D90000-0x0000000004DB2000-memory.dmp

    Filesize

    136KB

  • memory/5020-57-0x0000000007070000-0x000000000708A000-memory.dmp

    Filesize

    104KB

  • memory/5020-56-0x00000000076C0000-0x0000000007D3A000-memory.dmp

    Filesize

    6.5MB

  • memory/5020-58-0x00000000070E0000-0x00000000070EA000-memory.dmp

    Filesize

    40KB

  • memory/5020-59-0x00000000072F0000-0x0000000007386000-memory.dmp

    Filesize

    600KB

  • memory/5020-60-0x0000000007270000-0x0000000007281000-memory.dmp

    Filesize

    68KB

  • memory/5020-17-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-62-0x00000000072A0000-0x00000000072AE000-memory.dmp

    Filesize

    56KB

  • memory/5020-63-0x00000000072B0000-0x00000000072C4000-memory.dmp

    Filesize

    80KB

  • memory/5020-64-0x00000000073B0000-0x00000000073CA000-memory.dmp

    Filesize

    104KB

  • memory/5020-65-0x0000000007390000-0x0000000007398000-memory.dmp

    Filesize

    32KB

  • memory/5020-68-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-16-0x0000000002420000-0x0000000002456000-memory.dmp

    Filesize

    216KB