Analysis

  • max time kernel
    132s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    17/11/2021, 07:20

General

  • Target
    quotation list.exe
  • Size 861KB
  • Sample211117-h54rdaefal
  • SHA256 2295e6001d04081ff43afb1ef4a609d21fc55dd6f7e8b12d7c39e43d0dc7352e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot2081699912:AAEzV3q3VjR4t3322t8vefpFLkMbp3ETawA/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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). Likely ransomware behaviour.

  • 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 9 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quotation list.exe
    "C:\Users\Admin\AppData\Local\Temp\quotation list.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BkFTIYXgCD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:796
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BkFTIYXgCD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B9B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3256
    • C:\Users\Admin\AppData\Local\Temp\quotation list.exe
      "C:\Users\Admin\AppData\Local\Temp\quotation list.exe"
      2⤵
        PID:4168
      • C:\Users\Admin\AppData\Local\Temp\quotation list.exe
        "C:\Users\Admin\AppData\Local\Temp\quotation list.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:4248

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/796-142-0x00000000074D0000-0x00000000074D1000-memory.dmp

          memory/796-242-0x0000000006F83000-0x0000000006F84000-memory.dmp

          memory/796-241-0x000000007E860000-0x000000007E861000-memory.dmp

          memory/796-172-0x0000000009860000-0x0000000009861000-memory.dmp

          memory/796-171-0x0000000009680000-0x0000000009681000-memory.dmp

          memory/796-166-0x0000000009530000-0x0000000009531000-memory.dmp

          memory/796-159-0x0000000009550000-0x0000000009583000-memory.dmp

          memory/796-152-0x0000000003060000-0x0000000003061000-memory.dmp

          memory/796-130-0x0000000003060000-0x0000000003061000-memory.dmp

          memory/796-131-0x0000000003060000-0x0000000003061000-memory.dmp

          memory/796-132-0x0000000004A40000-0x0000000004A41000-memory.dmp

          memory/796-151-0x0000000008500000-0x0000000008501000-memory.dmp

          memory/796-134-0x00000000075C0000-0x00000000075C1000-memory.dmp

          memory/796-150-0x00000000087B0000-0x00000000087B1000-memory.dmp

          memory/796-149-0x0000000007CE0000-0x0000000007CE1000-memory.dmp

          memory/796-148-0x0000000007EB0000-0x0000000007EB1000-memory.dmp

          memory/796-146-0x0000000006F82000-0x0000000006F83000-memory.dmp

          memory/796-143-0x0000000007BF0000-0x0000000007BF1000-memory.dmp

          memory/796-144-0x0000000007E40000-0x0000000007E41000-memory.dmp

          memory/796-145-0x0000000006F80000-0x0000000006F81000-memory.dmp

          memory/3716-126-0x0000000007BC0000-0x0000000007C18000-memory.dmp

          memory/3716-122-0x0000000005640000-0x0000000005641000-memory.dmp

          memory/3716-120-0x0000000005B70000-0x0000000005B71000-memory.dmp

          memory/3716-118-0x0000000000D40000-0x0000000000D41000-memory.dmp

          memory/3716-121-0x0000000005670000-0x0000000005671000-memory.dmp

          memory/3716-127-0x0000000007C50000-0x0000000007C89000-memory.dmp

          memory/3716-125-0x0000000007AC0000-0x0000000007AC1000-memory.dmp

          memory/3716-124-0x00000000058E0000-0x00000000058E7000-memory.dmp

          memory/3716-123-0x0000000005650000-0x0000000005651000-memory.dmp

          memory/4248-135-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/4248-147-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

          memory/4248-392-0x0000000004EA1000-0x0000000004EA2000-memory.dmp