Malicious PDF — malware analysis report

Static analysis result for SHA-256 70cd32cb6b16ac28…

MALICIOUS

PDF

44.6 KB Created: 2020-08-19 07:31:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78be136cafaf49bf1cf813ac50b28d3c SHA-1: fa985cc59a065cd0d999a66f9148680814573355 SHA-256: 70cd32cb6b16ac28546c799ab00d89eee8a1fc9bddbd66ff5d032ab6696153bc
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=legitimate+free+annual+credit+report+site'. The document body and heuristics indicate a lure for free credit reports, suggesting a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=legitimate+free+annual+credit+report+site In PDF document text
    • http://files.mvkofcclubinc.org/uploads/1/3/1/3/131398075/jidilugetu.pdfIn PDF document text
    • http://vunages.streetfootballwales.com/uploads/1/3/0/7/130739892/vidika_ponudizofiduka_pevimit.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/1/0432/9200/0406/files/39652978916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/lasvegas_craigslist_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/27700254253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/47825575634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8189/9944/files/12132129811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4914/0902/files/bumovisanonamabatenuloja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/22973359176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/fibali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6661/2119/files/pasedofogizifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1842/8326/files/augmented_finance_machine_intelligence.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_off00006e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E28 5416 bytes
SHA-256: aeadc150b4ade83e0c69c2ab7cef89e68b2bbd570faa67c2beab99ceab42226f
font_01_sfnt_off0000807e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807E 11080 bytes
SHA-256: c6f54305700133087348de12ddf6c1a0024f14c1ec88dc836d08b5924bb8105f

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