Analysis

  • max time kernel
    129s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:11

General

  • Target

    Original shipping documents AWB & parcel tracking.exe

  • Size

    871KB

  • MD5

    348d7c0aaca945e8aaa2c5fb7bfc1122

  • SHA1

    54ce23bc3e637191c19443069dc3e624e55af782

  • SHA256

    f66744477239c87939089b7bfb0e5396cf5addf0288b90b95178cc001c587c16

  • SHA512

    b4e9edc8addd54db88cbefd0df4faed8526fa6d6c733f727305fd08d691979982944ecc61b7e2ea55d39f3afa0d10f76db020acaaad757ce0be669840e8f6c42

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    drsaint1992101

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 5 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\Original shipping documents AWB & parcel tracking.exe
    "C:\Users\Admin\AppData\Local\Temp\Original shipping documents AWB & parcel tracking.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp87A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1456
    • C:\Users\Admin\AppData\Local\Temp\Original shipping documents AWB & parcel tracking.exe
      "{path}"
      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:1100

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp87A.tmp

    Filesize

    1KB

    MD5

    d9b3fb55144055bf53049ae44e24a2b4

    SHA1

    e01d7cbee7c35cac28b467f84e92b7a48d32d61e

    SHA256

    7b950a718804352c3350d97782b2db4cd0e4fa78d1fded8b7f56edfa9df4a437

    SHA512

    001c56ee85bf76eb22969026c4ddd0f784052c37144642d8124b4fe0db1893bba55b2f5c4739a5a8cb54cdab5b1ea37ad830b34c429fdac0b8f93a4d5acc052c

  • memory/1100-61-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-58-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-59-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-64-0x000000000044757E-mapping.dmp

  • memory/1100-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-66-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-68-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1100-70-0x0000000074470000-0x0000000074A1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1456-56-0x0000000000000000-mapping.dmp

  • memory/1936-55-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1936-54-0x0000000074DD1000-0x0000000074DD3000-memory.dmp

    Filesize

    8KB