Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc235219f31e13ba…

MALICIOUS

PDF

50.6 KB Created: 2020-08-09 23:29:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1162b81cfbaeb213368931f441c690f4 SHA-1: c78343aa52592d60640b87f8dfc538e5e435fd11 SHA-256: cc235219f31e13ba7309bc10db7ccb6c2e41c576fabfb5c314c0e1e875ebe136
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, includes the URL that triggers the redirect. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning attempt to distribute the malicious content. The ML classifier strongly indicates maliciousness.

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=irregular+plural+nouns+list+pdf In PDF document text
    • http://gowufesep.cpfcanada.com/uploads/1/3/1/6/131606490/tisug.pdfIn PDF document text
    • http://files.lifesuccessfully.com/uploads/1/3/1/4/131407901/dc1739.pdfIn PDF document text
    • http://files.chambersjewelry.com/uploads/1/3/1/8/131871494/fajuviruvakizokixeda.pdfIn PDF document text
    • http://files.pacxo.us/uploads/1/3/0/7/130775753/1711478.pdfIn PDF document text
    • http://files.puremotion-pt.com/uploads/1/3/2/7/132710569/208483.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/1/0440/6929/0149/files/rizupivezodimexewebovek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/75392700582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/support_paloaltonetworks_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/toresajesufuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/27822034958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/61825743422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/13988775412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/loxuledumir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/9974448548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6049/4490/files/60180859972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6166/5192/files/chemistry_important_notes_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0567/9528/files/baudelaire_poesie_i_fiori_del_male.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 8

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_off000082c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C8 5148 bytes
SHA-256: ef1b8301d2d3d73635d0de0da92b9f7d449ac7cd3847d721f894832d21d3e7c4
font_01_sfnt_off0000945b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945B 12224 bytes
SHA-256: 5ab0f92a5c52e8655c056ad7dc828d2eebe90697ae3da878456ace5725f866c5

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