Malicious PDF — malware analysis report

Static analysis result for SHA-256 868490b750cfdfdf…

MALICIOUS

PDF

132.3 KB Created: 2022-07-04 00:55:26 +00:00 Authoring application: gilmar (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: fccee75e09ffbdd361bf71422adf7930 SHA-1: cd2ba68cd1eb9f26bb96d0468a3763a8ca800073 SHA-256: 868490b750cfdfdf4ec33542bee5d2fec1f3cfbd92af3ffda7889cd639c31d66
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of external links, many of which are advertised as cracked software. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external link farm, and 'PDF_CRACKED_SOFTWARE_LURE' confirms the nature of these links. One of the primary links, http://signforcover.com/dietitian/floodwaters/annually/R0xTY2VuZQR0x&ZG93bmxvYWR8R0MyTVdkaGNIeDhNVFkxTmpnNU1qTTFNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/spotlessly/, appears to be a malicious URL designed to host a payload. The document's purpose is to trick users into visiting these links, likely leading to malware download or further compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0082

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://signforcover.com/dietitian/floodwaters/annually/R0xTY2VuZQR0x&ZG93bmxvYWR8R0MyTVdkaGNIeDhNVFkxTmpnNU1qTTFNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/spotlessly/ PDF link annotation
    • https://speedhunters.al/wp-content/uploads/2022/07/Kindle_Previewer.pdfIn PDF document text
    • http://www.cpakamal.com/advanced-renamer-portable-3-84-crack/In PDF document text
    • https://shielded-spire-96359.herokuapp.com/brieyali.pdfIn PDF document text
    • https://www.lakemaryfl.com/sites/g/files/vyhlif746/f/uploads/fy22_adopted_budget_ada.pdfIn PDF document text
    • https://botkyrkaboxning.se/wp-content/uploads/2022/07/Crude_Video_Downloader__Crack__Download_Latest_2022.pdfIn PDF document text
    • https://www.careerfirst.lk/sites/default/files/webform/cv/ImTOO-DVD-Creator.pdfIn PDF document text
    • https://mentorus.pl/servicetweaker-crack-download-2022-new/In PDF document text
    • https://www.merexpression.com/upload/files/2022/07/HtnlH6Vccj9b5MW5eYHt_04_b326c2e4a7153b6c79353eedd77c5147_file.pdfIn PDF document text
    • https://jacobeachcostarica.net/wp-content/uploads/2022/07/ImageElements_FrameOut__Crack_Keygen_Full_Version_Download_2022.pdfIn PDF document text
    • https://www.sleepyhollowny.gov/sites/g/files/vyhlif3816/f/pages/comp_plan_red_line_sleepyhollow_publichearingdraft.pdfIn PDF document text
    • https://ikuta-hs19.jp/chmdecompiler-crack/In PDF document text
    • https://fraenkische-rezepte.com/qblade-crack-torrent-win-mac/In PDF document text
    • https://thebrothers.cl/portable-privacy-drive-3-7-0-crack-with-license-key-free-mac-win/In PDF document text
    • http://getpress.hu/blog/duplicate-file-finder-5-1-0-0-crack-free-download-2022/In PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/areader.pdfIn PDF document text
    • https://damp-harbor-84841.herokuapp.com/tomaober.pdfIn PDF document text
    • https://www.anamplace.com/wp-content/uploads/2022/07/FreeCAD__Crack_WinMac_April2022.pdfIn PDF document text
    • https://www.juniperhillpta.uk/wp-content/uploads/2022/07/rozysyb.pdfIn PDF document text
    • https://aqueous-sierra-25740.herokuapp.com/vanygiff.pdfIn PDF document text
    • https://infinite-cove-08162.herokuapp.com/FBNotifier.pdfIn PDF document text
    • https://botkyrkaboxning.se/wp-In PDF document text
    • https://www.merexpression.com/upload/files/2022/07/HtnlH6Vccj9b5MW5eYHt_04_b326c2e4a7153bIn PDF document text
    • https://jacobeachcostarica.net/wp-content/uploads/2022/07/ImageElements_FrameOut__Crack_KeygeIn PDF document text
    • https://www.sleepyhollowny.gov/sites/g/files/vyhlif3816/f/pages/comp_plan_red_line_sleepyhollow_puIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF2 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000e5de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DE 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261