Analysis

  • max time kernel
    94s
  • max time network
    102s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • 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 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 NtSetInformationThreadHideFromDebugger 14 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.

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 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:4804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3380
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:2172
    • C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe
      "C:\Users\Admin\AppData\Local\Temp\PRICE LIST (NOVEMBER 2020).exe"
      2⤵
        PID:4300
      • 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:4308
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1848
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:580

    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/580-18-0x00000000044F0000-0x00000000044F1000-memory.dmp
      Filesize

      4KB

    • memory/2172-9-0x0000000000000000-mapping.dmp
    • memory/3380-8-0x0000000000000000-mapping.dmp
    • memory/4308-19-0x0000000004DA0000-0x0000000004DA1000-memory.dmp
      Filesize

      4KB

    • memory/4308-20-0x0000000005300000-0x0000000005301000-memory.dmp
      Filesize

      4KB

    • memory/4308-24-0x0000000004DA1000-0x0000000004DA2000-memory.dmp
      Filesize

      4KB

    • memory/4308-23-0x0000000000DB0000-0x0000000000DB1000-memory.dmp
      Filesize

      4KB

    • memory/4308-22-0x0000000005FD0000-0x0000000005FD1000-memory.dmp
      Filesize

      4KB

    • memory/4308-12-0x000000000043751E-mapping.dmp
    • memory/4308-11-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4308-13-0x00000000739D0000-0x00000000740BE000-memory.dmp
      Filesize

      6.9MB

    • memory/4308-21-0x0000000005AB0000-0x0000000005AB1000-memory.dmp
      Filesize

      4KB

    • memory/4804-2-0x00000000739D0000-0x00000000740BE000-memory.dmp
      Filesize

      6.9MB

    • memory/4804-7-0x00000000022E0000-0x0000000002327000-memory.dmp
      Filesize

      284KB

    • memory/4804-3-0x0000000000020000-0x0000000000021000-memory.dmp
      Filesize

      4KB

    • memory/4804-10-0x0000000006D40000-0x0000000006D41000-memory.dmp
      Filesize

      4KB

    • memory/4804-5-0x0000000004890000-0x0000000004891000-memory.dmp
      Filesize

      4KB

    • memory/4804-6-0x0000000004A60000-0x0000000004A61000-memory.dmp
      Filesize

      4KB