Analysis

  • max time kernel
    140s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 00:43

General

  • Target

    473abc32162018e106a776dc9acceac0.exe

  • Size

    840KB

  • MD5

    473abc32162018e106a776dc9acceac0

  • SHA1

    5152df8dbcec444f42ed278bc57fe47cfdb735b7

  • SHA256

    e64c0a4f990a69ed7b395ed86eb27f0334bc48a4cae437db54f3e7625392eaa9

  • SHA512

    e97e2acfbb92ae3f6966873dec23a02a483442177c2447d3f58a64e1af21e974999174a4d39b73313f86e1ea8d5af3f00dd466d00c42aa37f9e6c1e89558fd24

  • SSDEEP

    24576:YomEX4uYup9Ds//8o2HRwmHqvjR2ZwX7mo5oFCEkv:xmVME/b2xwmHmhosv

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.buynsell.com.pk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Zeco@141

Signatures

  • AgentTesla

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

  • AgentTesla payload 6 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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
  • 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).

  • 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 SetWindowsHookEx 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\473abc32162018e106a776dc9acceac0.exe
    "C:\Users\Admin\AppData\Local\Temp\473abc32162018e106a776dc9acceac0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qZYHnCgwdh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2636.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2636
    • C:\Users\Admin\AppData\Local\Temp\473abc32162018e106a776dc9acceac0.exe
      "C:\Users\Admin\AppData\Local\Temp\473abc32162018e106a776dc9acceac0.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\NewApp\NewApp.exe

    Filesize

    93KB

    MD5

    8d616f75c54559119143b344f0f53e9e

    SHA1

    879b2ff81d46f31cd7da6d6a05b103ae73d5470f

    SHA256

    6053f635591f7e60508a5b57bd3e453f90e4eef26db86aded35956bf7f57f7c1

    SHA512

    8d79491ed56a216582afb5ff79c62f66f62edad5f0765ca3ddde8f3220887c75a5d38481c38264febbddc7e663692505ce9aaf11e8940cb80867a829d006b7fa

  • memory/2040-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2040-19-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-25-0x0000000073A40000-0x000000007412E000-memory.dmp

    Filesize

    6.9MB

  • memory/2040-26-0x0000000004890000-0x00000000048D0000-memory.dmp

    Filesize

    256KB

  • memory/2040-30-0x0000000004890000-0x00000000048D0000-memory.dmp

    Filesize

    256KB

  • memory/2040-29-0x0000000073A40000-0x000000007412E000-memory.dmp

    Filesize

    6.9MB

  • memory/2040-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-16-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-14-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-31-0x0000000004890000-0x00000000048D0000-memory.dmp

    Filesize

    256KB

  • memory/2040-15-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2040-21-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2164-7-0x0000000000CA0000-0x0000000000CE2000-memory.dmp

    Filesize

    264KB

  • memory/2164-0-0x0000000000F30000-0x0000000001008000-memory.dmp

    Filesize

    864KB

  • memory/2164-3-0x00000000002F0000-0x0000000000302000-memory.dmp

    Filesize

    72KB

  • memory/2164-23-0x0000000074130000-0x000000007481E000-memory.dmp

    Filesize

    6.9MB

  • memory/2164-2-0x0000000004DF0000-0x0000000004E30000-memory.dmp

    Filesize

    256KB

  • memory/2164-1-0x0000000074130000-0x000000007481E000-memory.dmp

    Filesize

    6.9MB

  • memory/2164-6-0x0000000005190000-0x000000000520E000-memory.dmp

    Filesize

    504KB

  • memory/2164-5-0x0000000004DF0000-0x0000000004E30000-memory.dmp

    Filesize

    256KB

  • memory/2164-4-0x0000000074130000-0x000000007481E000-memory.dmp

    Filesize

    6.9MB