Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf258a8679b02596…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 04:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 495e9027ff0d6f523e17601d17b12e67 SHA-1: 294ba1ceea1045759aeec8d2cb95d0e72e9aa857 SHA-256: cf258a8679b02596ad158c5937e5a33b8487545e0b41f6a28cebc749f3ba5e71
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'sap hybris commerce suite installation guide' and a URL pointing to a redirector. This suggests a social engineering attack aiming to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.com/pify?keyword=sap+hybris+commerce+suite+installation+guide In PDF document text
    • http://golek.postsustainabilityinstitute.org/uploads/1/3/1/3/131383613/6841279.pdfIn PDF document text
    • http://xaxepero.mrgunsplace.com/uploads/1/3/2/8/132814930/lapaxaxagow_vowogir_xujoko_jaduj.pdfIn PDF document text
    • http://files.blacklabelphotographythecatlins.co.nz/uploads/1/3/1/3/131383330/4c826d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/rakuvuwilelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/chess_rush_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/20143127330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/adolix_split_and_merge_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/pibederavoxunufezologop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/ilocos_tour_guide_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/5520/2723/files/architecture_design_pattern_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5346/0130/files/english_fal_grade_8_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/56390071446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/xojinetisidiwoxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/98438965733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/lirotusesevobatizelodiwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/2443323161.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 5832 bytes
SHA-256: 5b56a1b33357cb8693817b57d3da4d0b9bad198d131466bde1145c7ca62dd465
font_01_sfnt_off000074bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 12636 bytes
SHA-256: 96e2b4612792138cbe87dc36d37d70bfb7564328d725834b7cc87432a80c7915

Open this report in the interactive analyzer, or submit your own file for analysis.