Analysis

  • max time kernel
    108s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13/07/2020, 11:44

General

  • Target

    DHL001173980920PDF.exe

  • Size

    780KB

  • MD5

    e1ddbcd4db2d987719357e468c46a469

  • SHA1

    1d001797a1018683b79c898d73aa0158f08feea5

  • SHA256

    e2d112bd0fd186acce6eebc6ec5d389c69fd6ae1154d0f44938de68dedec29cc

  • SHA512

    d6aa3da3c9f02bd5006eeb6a86d1ffed5d3500156d8dfa8cd310e12df9a849874a6208f8e710a63467c7ad4f7ab1b5fb5cd21fdb0c69431af784e497a4b453ad

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.solarcenter.ro/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    RSv%AL{k~wATNN@ossyguru@00998877

  • Protocol:
    ftp
  • Host:
    ftp://ftp.solarcenter.ro/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    RSv%AL{k~wATNN@ossyguru@00998877

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL001173980920PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL001173980920PDF.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1940

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1028-4-0x0000000000400000-0x0000000000452000-memory.dmp

            Filesize

            328KB

          • memory/1028-7-0x0000000000400000-0x0000000000452000-memory.dmp

            Filesize

            328KB

          • memory/1028-8-0x0000000000400000-0x0000000000452000-memory.dmp

            Filesize

            328KB