Analysis

  • max time kernel
    136s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 23:54

General

  • Target

    20bb72f43d4d5802a1aced5b20f7139a.exe

  • Size

    1.3MB

  • MD5

    20bb72f43d4d5802a1aced5b20f7139a

  • SHA1

    36782372dc3e642d60ab9bf99ba2517ab0ccd814

  • SHA256

    a2091e110ed3e88a714edc6b5876dae81d4e7432f25764b391993ff234f663b1

  • SHA512

    7b81a68acacc9f3a050f52d777d57583ba24b56f437f8fb656c66c8e942b7e6d27030ac0030cb969bd76a041f94fea13766b41ba367a91654ce915a6ee98ee5b

  • SSDEEP

    24576:Iq1Om76DOZfx8Dgyfx8Dg/emuIgvkDok2uCev1chfujwDZI2L:Gm76w58Dgy58Dg/eIgcsLuCAifuUZF

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    orange@123

Signatures

  • AgentTesla

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

  • AgentTesla payload 7 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 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\20bb72f43d4d5802a1aced5b20f7139a.exe
    "C:\Users\Admin\AppData\Local\Temp\20bb72f43d4d5802a1aced5b20f7139a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PrxxmwvLNF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp275E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2580
    • C:\Users\Admin\AppData\Local\Temp\20bb72f43d4d5802a1aced5b20f7139a.exe
      "C:\Users\Admin\AppData\Local\Temp\20bb72f43d4d5802a1aced5b20f7139a.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp275E.tmp

    Filesize

    1KB

    MD5

    fc845fb5f3fbf9f8f1feaf1883339287

    SHA1

    2c4a57e90093afdd6734be608c830e8e969f93c4

    SHA256

    ba301cf01ce3a288900ce61fc340dd47fcb7ae6e8f4ff082fda35795bffea363

    SHA512

    492c9cde07162be3a52e8992a3f32b87bf0cde742aa902bf51d1e954c3c91a2e053751b2ff6a1f86163133dae0bbda907bc03ae7a650f3deb6a61af2bc9736f2

  • memory/1204-22-0x0000000074CA0000-0x000000007538E000-memory.dmp

    Filesize

    6.9MB

  • memory/1204-5-0x0000000004A90000-0x0000000004AD0000-memory.dmp

    Filesize

    256KB

  • memory/1204-0-0x00000000013C0000-0x0000000001508000-memory.dmp

    Filesize

    1.3MB

  • memory/1204-4-0x0000000074CA0000-0x000000007538E000-memory.dmp

    Filesize

    6.9MB

  • memory/1204-2-0x0000000004A90000-0x0000000004AD0000-memory.dmp

    Filesize

    256KB

  • memory/1204-6-0x0000000007280000-0x0000000007322000-memory.dmp

    Filesize

    648KB

  • memory/1204-7-0x0000000000690000-0x00000000006CC000-memory.dmp

    Filesize

    240KB

  • memory/1204-1-0x0000000074CA0000-0x000000007538E000-memory.dmp

    Filesize

    6.9MB

  • memory/1204-3-0x00000000001E0000-0x00000000001F2000-memory.dmp

    Filesize

    72KB

  • memory/2812-14-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-16-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2812-19-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-15-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-21-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2812-25-0x0000000074C20000-0x000000007530E000-memory.dmp

    Filesize

    6.9MB

  • memory/2812-26-0x0000000004BF0000-0x0000000004C30000-memory.dmp

    Filesize

    256KB

  • memory/2812-27-0x0000000074C20000-0x000000007530E000-memory.dmp

    Filesize

    6.9MB

  • memory/2812-28-0x0000000004BF0000-0x0000000004C30000-memory.dmp

    Filesize

    256KB