Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80876beb9183e98…

MALICIOUS

PDF

71.2 KB Created: 2020-08-08 01:35:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1b7f5b21262218cdda30bf2ed07e041 SHA-1: 5a65c467498ba0153f1391dcbe13ed1e92a56034 SHA-256: f80876beb9183e98d6e47c29ee3d5ba23855d9b79083e68465ed98e7bd584fa5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to an SEO redirector, which is a common tactic for phishing and malware distribution. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains references to the redirector and benign-looking Shopify links, likely as part of a link farm to improve search engine ranking for 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.ru/pify?keyword=le+moringa+et+ses+vertus+pdf In PDF document text
    • http://files.shoggothkinetics.com/uploads/1/3/1/0/131070488/b3f5a60e.pdfIn PDF document text
    • http://files.rustybarnblog.com/uploads/1/3/1/4/131406827/feniv.pdfIn PDF document text
    • http://lusoxato.johnandkarahood.com/uploads/1/3/1/0/131070872/1710142.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/1/0431/6450/0122/files/bachianas_5_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/55631165352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/8863476011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/87512242547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/75916430645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/amor_liquido_bauman_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8869/0841/files/74340882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/51419382534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3489/1672/files/kannada_janapada_songs_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/fulipegolamexogagovet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/61526983683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/lewadolulijugivet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/65987075871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/vocabulary_words_with_urdu_meaning_and_sentences.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9885 5328 bytes
SHA-256: 2a15c6a2b4f096968a715b4d915c23001e35a13b156ae1ea1cb6bbfa911318c6
font_01_sfnt_off0000aa94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA94 8772 bytes
SHA-256: 8edb7b1e1c3e00a98b7c08d5c85041c26c5bc3bf7e9f08644a1a3878957d4831
font_02_sfnt_off0000c825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC825 15280 bytes
SHA-256: a929c0d6e668b31ba20873248d26aa6c66810d6d4892d02566982bee654cee1e
font_03_sfnt_off0000f5d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D0 16872 bytes
SHA-256: 6aba2a0ee81482b2956b39fc10e3ec2ec13bca26fce3fbe8c7401fd66fd3592c