Analysis

  • max time kernel
    103s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14/06/2023, 20:30

General

  • Target

    Pedidos.xlsx

  • Size

    726KB

  • MD5

    2bb06693c9e1eaf5576f8a503495dcb9

  • SHA1

    e29c64134a68b3d58c18491f59c62428cf315930

  • SHA256

    d020d147b7c1988c868b9c84f738ce36f4e0d0271db8cc2b3e9d314acb0940f9

  • SHA512

    c5b771bd9d2f9ac6b7386e9898db0e105f9245bbdd27ad04c86ef6d3bf3967560432a6e3d2eb334b4c4ccf3ece537934c00b9e9229c996afe619dd92ce31a8a7

  • SSDEEP

    12288:TML7nvXmvq+HR5HIrrk1C6+1uNy45XPyTyOE1w4ZUJ2IpQF4Svs+erQxQX2ptOua:6mvqc5HIUT+1qy456Tf6hZgpDrQxXxe

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.papeleriaveneplast.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    IeP;CsmA%.3G

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Pedidos.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1536
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\squirelllll.vbs"
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Users\Public\mojooooo.exe
        "C:\Users\Public\mojooooo.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:272
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          4⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\squirelllll.vbs

    Filesize

    192KB

    MD5

    0cdf35374e4c56f3d0beaa3a449e5c8d

    SHA1

    a84ef0a6180f32d33acaba30f69f2cd09c7baf3f

    SHA256

    ded012ce4854f02123ae84ba22760c7f4975901d0527a7920e9d241efaf2d231

    SHA512

    60aa4bd6cee5bcf6a95488c45cf6f2d54feaeebe9b0ce17466e324d9b009c0eec9d850fdf59b68a08b66c05fe500de56281b86c6b2c077777b91ca9046b58d36

  • C:\Users\Admin\AppData\Roaming\squirelllll.vbs

    Filesize

    192KB

    MD5

    0cdf35374e4c56f3d0beaa3a449e5c8d

    SHA1

    a84ef0a6180f32d33acaba30f69f2cd09c7baf3f

    SHA256

    ded012ce4854f02123ae84ba22760c7f4975901d0527a7920e9d241efaf2d231

    SHA512

    60aa4bd6cee5bcf6a95488c45cf6f2d54feaeebe9b0ce17466e324d9b009c0eec9d850fdf59b68a08b66c05fe500de56281b86c6b2c077777b91ca9046b58d36

  • C:\Users\Public\mojooooo.exe

    Filesize

    2.7MB

    MD5

    39d43cbc0e1bff3b362c2e7035617f37

    SHA1

    b594421b818fda79c02a11ed4d55c6a912619d3c

    SHA256

    5d0c01b1ceef88fb8963383443d7b833df48e10f8708edbfadb457c4ca99ffb4

    SHA512

    2deca5e4c1b9917306c9c0fe9aeac87a353cb5e7814a2f6092e49b751e7ceb1679f88c1dbc950b370af9cd22a5be5e4c5bc7d81f1ab7f597954c9f5dc4f7b8df

  • C:\Users\Public\mojooooo.exe

    Filesize

    2.7MB

    MD5

    39d43cbc0e1bff3b362c2e7035617f37

    SHA1

    b594421b818fda79c02a11ed4d55c6a912619d3c

    SHA256

    5d0c01b1ceef88fb8963383443d7b833df48e10f8708edbfadb457c4ca99ffb4

    SHA512

    2deca5e4c1b9917306c9c0fe9aeac87a353cb5e7814a2f6092e49b751e7ceb1679f88c1dbc950b370af9cd22a5be5e4c5bc7d81f1ab7f597954c9f5dc4f7b8df

  • \Users\Public\mojooooo.exe

    Filesize

    2.7MB

    MD5

    39d43cbc0e1bff3b362c2e7035617f37

    SHA1

    b594421b818fda79c02a11ed4d55c6a912619d3c

    SHA256

    5d0c01b1ceef88fb8963383443d7b833df48e10f8708edbfadb457c4ca99ffb4

    SHA512

    2deca5e4c1b9917306c9c0fe9aeac87a353cb5e7814a2f6092e49b751e7ceb1679f88c1dbc950b370af9cd22a5be5e4c5bc7d81f1ab7f597954c9f5dc4f7b8df

  • memory/272-86-0x00000000003A0000-0x000000000065C000-memory.dmp

    Filesize

    2.7MB

  • memory/272-87-0x000000001C060000-0x000000001C2AC000-memory.dmp

    Filesize

    2.3MB

  • memory/272-88-0x000000001B550000-0x000000001B5D0000-memory.dmp

    Filesize

    512KB

  • memory/1536-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1536-104-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1620-90-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-91-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-92-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-93-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1620-94-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-96-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-98-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-99-0x0000000004C30000-0x0000000004C70000-memory.dmp

    Filesize

    256KB

  • memory/1620-100-0x0000000004C30000-0x0000000004C70000-memory.dmp

    Filesize

    256KB

  • memory/1620-89-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB