Analysis

  • max time kernel
    62s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 01:07

General

  • Target

    c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe

  • Size

    748KB

  • MD5

    28da32c1cf8ead709f4888f84a697c28

  • SHA1

    45122f3c46fb3400cc6710a830a259da54b07298

  • SHA256

    c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade

  • SHA512

    6d67f361a2f126e35f31e0ff5298bed2ee36e0262a8d71ec5254277c2ed122d9769bb7cc168d00b47616fd381f625a1a6542854c84d9c7cc184c607312fdef13

  • SSDEEP

    12288:90K/pbM4nsSz3ITyeYmaNKiz4xrreLpSYHK6rPILRwwAF9:90iM4nuTyVXNDz4xIYGK2Wg9

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe
    "C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe
      "C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe"
      2⤵
        PID:2896
      • C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe
        "C:\Users\Admin\AppData\Local\Temp\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1184

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1184-11-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/1184-20-0x0000000005900000-0x0000000005910000-memory.dmp
      Filesize

      64KB

    • memory/1184-19-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/1184-18-0x0000000006F60000-0x0000000006FB0000-memory.dmp
      Filesize

      320KB

    • memory/1184-17-0x0000000005910000-0x0000000005976000-memory.dmp
      Filesize

      408KB

    • memory/1184-16-0x0000000005900000-0x0000000005910000-memory.dmp
      Filesize

      64KB

    • memory/1184-14-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/4928-5-0x00000000050E0000-0x00000000050EA000-memory.dmp
      Filesize

      40KB

    • memory/4928-9-0x00000000053E0000-0x00000000053F4000-memory.dmp
      Filesize

      80KB

    • memory/4928-10-0x0000000008D60000-0x0000000008DE2000-memory.dmp
      Filesize

      520KB

    • memory/4928-8-0x00000000053D0000-0x00000000053DE000-memory.dmp
      Filesize

      56KB

    • memory/4928-7-0x00000000053B0000-0x00000000053C8000-memory.dmp
      Filesize

      96KB

    • memory/4928-15-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/4928-6-0x00000000053F0000-0x000000000548C000-memory.dmp
      Filesize

      624KB

    • memory/4928-0-0x0000000000640000-0x00000000006FE000-memory.dmp
      Filesize

      760KB

    • memory/4928-4-0x0000000005190000-0x00000000051A0000-memory.dmp
      Filesize

      64KB

    • memory/4928-3-0x00000000051C0000-0x0000000005252000-memory.dmp
      Filesize

      584KB

    • memory/4928-2-0x0000000005770000-0x0000000005D14000-memory.dmp
      Filesize

      5.6MB

    • memory/4928-1-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB