Malicious PDF — malware analysis report

Static analysis result for SHA-256 930acc15da03bc88…

MALICIOUS

PDF

40.7 KB Created: 2020-08-23 17:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42d8c902de77f1eea86faf826df14eac SHA-1: 5ea5dfe50b0acb45ac47863dcc76d35d87a2acdc SHA-256: 930acc15da03bc8877d35513c6cf80f811595ba59824a841ef56d22326b4f69a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=skype+7.+39+offline', which is also flagged as malicious. This URL likely serves as a lure to download a malicious payload or redirect to further malicious content. The presence of a link farm further suggests an attempt to distribute malicious content or manipulate search engine results.

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=skype+7.+39+offline In PDF document text
    • http://files.merarifernandez.com/uploads/1/3/1/4/131407165/6839308.pdfIn PDF document text
    • http://files.theresemcinerney.com/uploads/1/3/1/1/131163613/joruluz.pdfIn PDF document text
    • http://tubaramat.notabenetucson.com/uploads/1/3/2/8/132814930/4320682.pdfIn PDF document text
    • http://files.chesapeakeawnings.com/uploads/1/3/1/8/131857818/doragufemewu-kawopanegotu.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/1/0434/4823/8241/files/pugazatok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5060/5461/files/calculus_and_vectors_grade_12_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2988/8161/files/46402277795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0172/4577/files/18370505462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/xizujokopakalibudim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/puxajulefinevudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2140/9184/files/3881316673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/39059326107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/admission_form_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8663/3377/files/agro_ecological_zones_in_tanzania.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4660/6760/files/ai_file_viewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/kuronimimufibopevefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1707/5868/files/os_axiomas_de_zurique_completo_gratis.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_off000061b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B3 5112 bytes
SHA-256: c6cfce9f87bafd224f5ff31ada3c3ce88318423b6ce360724c71ff1147619d91
font_01_sfnt_off0000734f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734F 10280 bytes
SHA-256: 966fc86eb730b4862dfb767ee68e40de528c5823dc50561ad1230342e09519ed

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