Analysis

  • max time kernel
    143s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:17

General

  • Target

    INQUIRY No. 280720205467_pdf.exe

  • Size

    894KB

  • MD5

    54002d33966a416406390a7336571eb8

  • SHA1

    0e91f8bf64d008057b27549ffabc8ba53b76b72f

  • SHA256

    a8f804c2312a502e0eef99eb4582dbb7037bcf89031f707070f97a8ba53e5fb7

  • SHA512

    34aa4ee50387cfc7b371de4cdbc061dcc175de9e5e2fcfd3e36074b33b77bb932872b0de5fefe0e689a1626b9e565946ab96097263855aebb6877e94ff9f2190

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.specialmetal.ir
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    02188985257

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • 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). 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\INQUIRY No. 280720205467_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D03.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1896
    • C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.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:1228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1D03.tmp

    Filesize

    1KB

    MD5

    9835adb120cb0656789aa7b85414fb46

    SHA1

    7029a0b83bdcc0ed1c0c8a2047cc62d302658e87

    SHA256

    90507a6b0ada49b0d215d26dee4e860b73af854401b572d16953c279287bfa5b

    SHA512

    1c21b4347dcd2458b00d257748023c857195dbe25c5ef4779c0b631ce4ceb969a147a23a24bbe88693fc5f33cb6d9a4900aea969b381f7c980a619ece9bad958

  • memory/756-55-0x00000000009C0000-0x0000000000A2C000-memory.dmp

    Filesize

    432KB

  • memory/756-56-0x00000000755B1000-0x00000000755B3000-memory.dmp

    Filesize

    8KB

  • memory/756-57-0x00000000004D0000-0x00000000004DA000-memory.dmp

    Filesize

    40KB

  • memory/756-58-0x0000000005F20000-0x0000000005F86000-memory.dmp

    Filesize

    408KB

  • memory/756-59-0x0000000005E90000-0x0000000005EDC000-memory.dmp

    Filesize

    304KB

  • memory/756-54-0x0000000001160000-0x000000000124A000-memory.dmp

    Filesize

    936KB

  • memory/1228-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-66-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-65-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-67-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-68-0x00000000004471CE-mapping.dmp

  • memory/1228-70-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1228-72-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1896-60-0x0000000000000000-mapping.dmp