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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    14/01/2025, 01:40

General

  • Target

    66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e.exe

  • Size

    1.4MB

  • MD5

    81b6c3bc8ffb62a5301ae6a3fe7298e5

  • SHA1

    2e4dccda2cacb626fe0fb511a942692ffb949789

  • SHA256

    66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e

  • SHA512

    6eeed543341a7430b8104eeeef271cf95cf4897c8d6488c06da6ab6d6118d31f9653998b52105f3af4d98543f7c8fa5a0218bbd993dc0da012396bba33fb908a

  • SSDEEP

    24576:Z+kwnmSMDo5tW0ak+9BVaFcfv1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:ZBwnZMOaxOSJjLoyEkmZ9Y14

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Drops file in Drivers directory 1 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e.exe
    "C:\Users\Admin\AppData\Local\Temp\66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Users\Admin\AppData\Local\Temp\66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e.exe
      "C:\Users\Admin\AppData\Local\Temp\66d55aed217ab100b55b3a975cdc89cce644c32f3d27cc202f68b3404b67c53e.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2880
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 1100
        3⤵
        • Program crash
        PID:688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2100-22-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-1-0x0000000000800000-0x0000000000966000-memory.dmp

    Filesize

    1.4MB

  • memory/2100-2-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/2100-4-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-5-0x0000000007E00000-0x0000000007E96000-memory.dmp

    Filesize

    600KB

  • memory/2100-6-0x00000000041B0000-0x00000000041EC000-memory.dmp

    Filesize

    240KB

  • memory/2100-3-0x0000000000310000-0x0000000000326000-memory.dmp

    Filesize

    88KB

  • memory/2880-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2880-19-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-21-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-9-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-7-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2880-23-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2880-24-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2880-26-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB