Malicious PDF — malware analysis report

Static analysis result for SHA-256 5101e77cb436e331…

MALICIOUS

PDF

47.6 KB Created: 2020-08-10 21:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0f7b8a6492b1259d2b8095a3cc42398 SHA-1: cd79ecc3aedadec02fdced2674015ed5b5a0b1f9 SHA-256: 5101e77cb436e33139aa7577dbe4787e3e69c0129c71721fedec91fc92329df0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=tennessee+titans+schedule+2020+pdf'. This URL is likely used to redirect the user to a malicious site for further exploitation or phishing. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO spam or link farm techniques used to distribute malicious content.

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.cc/pify?keyword=tennessee+titans+schedule+2020+pdf In PDF document text
    • http://files.mnjeweler.com/uploads/1/3/1/4/131437740/fomurogoxufirofaliz.pdfIn PDF document text
    • http://files.urbanmuttretreat.com/uploads/1/3/0/7/130775223/373e636d.pdfIn PDF document text
    • http://files.heightscenter.org/uploads/1/3/2/6/132681812/bikade_nafaralo.pdfIn PDF document text
    • http://files.grillhousearmenia.es/uploads/1/3/1/3/131379439/489133.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/1/0433/9879/1329/files/74066819134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/vozokinejamuvolamituw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/60178615164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4047/9131/files/analytical_techniques_in_the_pharmaceutical_sciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/guxusoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/how_to_delete_multiple_messages_on_messenger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1832/8991/files/kolstad_environmental_economics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/pafirivuwajewoximiruwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/6812911858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/16239137385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/pijunanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0053/4952/files/12373606916.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000761e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761E 5372 bytes
SHA-256: 0304d6c5597e44505b0b8dfb327cf73b91fd41397128dbae6f6942469e758e8c
font_01_sfnt_off00008858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8858 13188 bytes
SHA-256: dfdc745887ba73376d6f7d7d7aea3a70157cdf09f29bc04a33a9075b5ad8c09a