Analysis

  • max time kernel
    139s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:01

General

  • Target

    Urgent Inquiry (HEC RFQ).exe

  • Size

    656KB

  • MD5

    4dcf2260b10788856a41785081a38cb0

  • SHA1

    00baebd101ee9d01d934f9b1fb524a08289dfaac

  • SHA256

    651b7d097b570f7c0f182fb52c3d703fbaf3b80e189d8dea1d84e5971a5ea982

  • SHA512

    53186153f42319254031e51f3d98f2a002233c8989cfa5575fadd3236ce5f740b1219598d0aa02acda05254c7a46df541c1ee55ec99d098adb7485c5b691b341

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    71c7eb1f8ba

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    71c7eb1f8ba

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry (HEC RFQ).exe
    "C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry (HEC RFQ).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry (HEC RFQ).exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Urgent Inquiry (HEC RFQ).exe.log

    Filesize

    408B

    MD5

    8adbb2cb7759fdcbc51cfbf0bfd7c867

    SHA1

    f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

    SHA256

    c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

    SHA512

    f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

  • memory/4160-130-0x0000000074D50000-0x0000000075301000-memory.dmp

    Filesize

    5.7MB

  • memory/4952-131-0x0000000000000000-mapping.dmp

  • memory/4952-132-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4952-134-0x0000000074D50000-0x0000000075301000-memory.dmp

    Filesize

    5.7MB