Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    17/08/2022, 06:30

General

  • Target

    Request for PI.js

  • Size

    50KB

  • MD5

    72a7b0c6616ec12b73957b808c7cbabc

  • SHA1

    6fa031b34174966d214bd9ab9428b405fede8d77

  • SHA256

    0274e6f327598725f0b88d7044264a0f85598ac00ba227b13a7045c080d4c46d

  • SHA512

    46347307f066377819272f76ecc5792f93a4f90744317c973816fdb879f0622de9d15def30e7ec34e51544d84b0d2cf52fa8aa4b67dd2eb176e08d8b14051857

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.techlabinfo.com.br
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    oX3.Xh!@xFc=

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.techlabinfo.com.br/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    oX3.Xh!@xFc=

Signatures

  • AgentTesla

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

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 36 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Drops startup file 4 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Request for PI.js"
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ToLSGtelkO.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:572
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bZQEUbJxNj.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:1760
    • C:\Users\Admin\AppData\Local\Temp\EPPP.exe
      "C:\Users\Admin\AppData\Local\Temp\EPPP.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1408

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\EPPP.exe

          Filesize

          209KB

          MD5

          3058367b72a671967b83872a8f99b09a

          SHA1

          b34b56369600d6b117bfadb1dd5d7affac4eaa61

          SHA256

          76d65d87a7c98ffbebe035f800a8bb48e88cd9a15d843b88a6c9bd6fcc551b3b

          SHA512

          be853cbf4e82589b0002530f9e4f67c6ed994fb3dd02488f04b49ca292e0106ea1f79d077e99fb15c969a2256c679c801a24cc8d9d7b679455e5a368f7ba65fb

        • C:\Users\Admin\AppData\Local\Temp\EPPP.exe

          Filesize

          209KB

          MD5

          3058367b72a671967b83872a8f99b09a

          SHA1

          b34b56369600d6b117bfadb1dd5d7affac4eaa61

          SHA256

          76d65d87a7c98ffbebe035f800a8bb48e88cd9a15d843b88a6c9bd6fcc551b3b

          SHA512

          be853cbf4e82589b0002530f9e4f67c6ed994fb3dd02488f04b49ca292e0106ea1f79d077e99fb15c969a2256c679c801a24cc8d9d7b679455e5a368f7ba65fb

        • C:\Users\Admin\AppData\Roaming\ToLSGtelkO.js

          Filesize

          26KB

          MD5

          50c6f77435d4987498d7c5b67e7e3715

          SHA1

          4ef9674b6918f666814b26717dafe740246ce8bc

          SHA256

          4960d6a2c4bddf11663bec4cbf3a06a57b01f9509b82c92e1ee0ec97890911e0

          SHA512

          45947604ac1bc959b3af7a49c7bdc9917b16ff117b81724f100a0f8a7e4ce672bfae25e03ef9c89dcea21f98c9963b4d0aa893a88af64ba3d1b445b79cb7aeff

        • C:\Users\Admin\AppData\Roaming\bZQEUbJxNj.js

          Filesize

          6KB

          MD5

          a542a21ecaba36f6ba8c6457b8ab67f9

          SHA1

          3f05ddc6d6e59554cd9870b9e4b17919b81eaa6c

          SHA256

          bc831f27e6da7b5e82be628a1564c8b6aee02ec9290c5d21f99733dd2d1db47b

          SHA512

          78ca13a83bbd029470978b1e465ee6b0c2a9345a1fe8ee3e86d9f1d48bd52b7927a16e607f71084a91706213d8ddc0293ed06a1927e478b9bbc21ab0b47b9a2a

        • memory/1408-62-0x0000000000EE0000-0x0000000000F1A000-memory.dmp

          Filesize

          232KB

        • memory/1408-63-0x0000000075441000-0x0000000075443000-memory.dmp

          Filesize

          8KB

        • memory/1760-58-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

          Filesize

          8KB