Malicious PDF — malware analysis report

Static analysis result for SHA-256 79cca8211b682236…

MALICIOUS

PDF

44.1 KB Created: 2020-08-06 12:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 159298e52321f852b4b632ee193e252f SHA-1: 4b9e1f2f6a79d2d05d2d8f46eb9c8d6ef0be3aae SHA-256: 79cca8211b682236eed09d303668b02852b515f157b9030e76d7348a1af3e15a
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, many of which point to a redirector service known for malicious activity. The document's content and structure suggest a lure to trick users into clicking these links, likely leading to a phishing or malware download site. The embedded links, including the primary redirector URL, are the highest priority IOCs.

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=characteristics+of+research+design+pdf In PDF document text
    • http://files.mrgutierrez.net/uploads/1/3/0/7/130775831/gimupogojepo_peredu.pdfIn PDF document text
    • http://files.awonderland.co.uk/uploads/1/3/0/8/130873807/tokilo_silusotire_lalel_bakefadatuvu.pdfIn PDF document text
    • http://nobimif.cerysthomasford.com/uploads/1/3/1/0/131070356/fudesitovipuxeba.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/1/0438/0049/4237/files/90302340717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3794/0117/files/ferimuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/gokafolonap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/fezefutileveneja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/zalulotibifotan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/tavasor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4831/2738/files/98410522027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/88124816815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7196/2265/files/92227967509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/natabegavevinajijadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0787/2921/files/diuretic_drugs_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5940/3157/files/behavioral_treatment_for_adhd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41732402988.pdfIn PDF document text
    • https://www.cancer.gov/coronavirusIn 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 2

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_off00006c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6D 5292 bytes
SHA-256: d80eaa139ba3000791e842c3795a0749cb64429eb9920f2bcc5a52db734e6dce
font_01_sfnt_off00007e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E62 10900 bytes
SHA-256: e70b773110cadc3e2a0b82f477fe6ff449fd07190a59ca404b214c1dbfb88f05

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