Analysis

  • max time kernel
    94s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    23-02-2021 13:27

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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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:4768
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:4064
    • 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:552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1836
      2⤵
      • Program crash
      PID:944

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/552-19-0x00000000053A0000-0x00000000053A1000-memory.dmp
    Filesize

    4KB

  • memory/552-12-0x000000000043751E-mapping.dmp
  • memory/552-13-0x0000000073360000-0x0000000073A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/552-11-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/552-23-0x0000000006600000-0x0000000006601000-memory.dmp
    Filesize

    4KB

  • memory/552-22-0x00000000067A0000-0x00000000067A1000-memory.dmp
    Filesize

    4KB

  • memory/552-21-0x00000000060D0000-0x00000000060D1000-memory.dmp
    Filesize

    4KB

  • memory/552-24-0x00000000053A1000-0x00000000053A2000-memory.dmp
    Filesize

    4KB

  • memory/552-20-0x0000000005430000-0x0000000005431000-memory.dmp
    Filesize

    4KB

  • memory/944-18-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
    Filesize

    4KB

  • memory/3208-8-0x0000000000000000-mapping.dmp
  • memory/4064-9-0x0000000000000000-mapping.dmp
  • memory/4768-6-0x00000000057D0000-0x00000000057D1000-memory.dmp
    Filesize

    4KB

  • memory/4768-2-0x0000000073360000-0x0000000073A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/4768-5-0x0000000005680000-0x0000000005681000-memory.dmp
    Filesize

    4KB

  • memory/4768-10-0x0000000007B30000-0x0000000007B31000-memory.dmp
    Filesize

    4KB

  • memory/4768-3-0x0000000000E00000-0x0000000000E01000-memory.dmp
    Filesize

    4KB

  • memory/4768-7-0x0000000002FB0000-0x0000000002FF7000-memory.dmp
    Filesize

    284KB