Analysis

  • max time kernel
    113s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-07-2020 04:22

General

  • Target

    origincripted.exe

  • Size

    506KB

  • MD5

    6baf086ff9060abe74f2811b5b57383d

  • SHA1

    59d2057b920ca46326aa0f10b0437f49770a684b

  • SHA256

    2f82dffb6984064e3a865298818c2081de389fced1e4d98b12f2da014a74fcb9

  • SHA512

    c5d0a5efc21c08ecedc9832117ce4e5a8f65488723321845aa6087e3916db8968b8a7446abee6951ea2201528cd329d34c3c8a11d9ac16cd3c3e11b2d9833e0c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.wolterfan.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @Mar123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\origincripted.exe
    "C:\Users\Admin\AppData\Local\Temp\origincripted.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Users\Admin\AppData\Local\Temp\origincripted.exe
      "C:\Users\Admin\AppData\Local\Temp\origincripted.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1796

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1512-0-0x0000000000400000-0x00000000004B0000-memory.dmp
      Filesize

      704KB

    • memory/1512-1-0x00000000004AE0F0-mapping.dmp
    • memory/1512-2-0x0000000000400000-0x00000000004B0000-memory.dmp
      Filesize

      704KB

    • memory/1512-3-0x0000000000400000-0x00000000004B0000-memory.dmp
      Filesize

      704KB

    • memory/1512-4-0x0000000000390000-0x00000000003E2000-memory.dmp
      Filesize

      328KB

    • memory/1512-6-0x0000000000230000-0x000000000027B000-memory.dmp
      Filesize

      300KB

    • memory/1796-8-0x0000000000000000-mapping.dmp