Analysis

  • max time kernel
    106s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23-02-2021 12:39

General

  • Target

    PRICE LIST (NOVEMBER 2020).exe

  • Size

    31KB

  • MD5

    404ef05a6acc67c2b59189171f9eb0fc

  • SHA1

    0ecf315e5a72a3c9ddd386d1116d2265877b4027

  • SHA256

    863d464bb43bda7378c611a5c16410a3c279ca72e447632f5e03f8418f5464d8

  • SHA512

    19ea2b67ef1661bcb5c2bb9640970ad8f3c734958853cd98045eb79b833d3b3bbfa0af59b1cf49e7175e9fa0d3dc3d4dfe75ce97fb6053b6f94d18510a296c0a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.electrobelarmino.pt
  • Port:
    587
  • Username:
    jose.carvalho@electrobelarmino.pt
  • Password:
    4WFbZhWVf.I6

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 NtSetInformationThreadHideFromDebugger 12 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe
    "C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:332
    • C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe
      "C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe"
      2⤵
        PID:584
      • C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe
        "C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1456

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/332-8-0x0000000000000000-mapping.dmp
    • memory/1096-2-0x0000000074CF0000-0x00000000753DE000-memory.dmp
      Filesize

      6.9MB

    • memory/1096-3-0x00000000001F0000-0x00000000001F1000-memory.dmp
      Filesize

      4KB

    • memory/1096-5-0x0000000004C00000-0x0000000004C01000-memory.dmp
      Filesize

      4KB

    • memory/1096-6-0x00000000004F0000-0x0000000000537000-memory.dmp
      Filesize

      284KB

    • memory/1212-7-0x0000000000000000-mapping.dmp
    • memory/1456-9-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1456-10-0x000000000043751E-mapping.dmp
    • memory/1456-11-0x0000000074CF0000-0x00000000753DE000-memory.dmp
      Filesize

      6.9MB

    • memory/1456-12-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1456-14-0x0000000004AF0000-0x0000000004AF1000-memory.dmp
      Filesize

      4KB

    • memory/1456-15-0x0000000004AF1000-0x0000000004AF2000-memory.dmp
      Filesize

      4KB