Malicious PDF — malware analysis report

Static analysis result for SHA-256 078f9cff293a3938…

MALICIOUS

PDF

39.8 KB Created: 2020-08-18 15:24:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac286c47f8bdf102889bcdfb72b00bae SHA-1: 3c8e0718da6b647b2334ef439e548f7aa0d10c45 SHA-256: 078f9cff293a393884eb633d95bbab739e461b890f9e22daf0fe562d155ea973
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though partially corrupted, includes the same redirector URL and a Shopify URL, suggesting a link farm or SEO manipulation tactic to drive traffic. The ML classifier also strongly indicated 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.cc/pify?keyword=fruits+and+vegetables+worksheets+for+toddlers In PDF document text
    • http://files.southatlantabirths.com/uploads/1/3/0/7/130775503/tabolufugawizidop.pdfIn PDF document text
    • http://kejikove.clevelandpropshop.com/uploads/1/3/0/8/130874317/rasepo.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/1/0438/0118/2370/files/the_scrambler_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9353/9478/files/lobumodutamilifisabuzux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/67599272733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9263/files/7421220508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/29430506692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/pdf_file_reader_software_free_download_for_android_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/tangerine_book_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7631/1453/files/peregizudegabemimukeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9613/7111/files/vantel_pearls_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/funuvusotinepinorevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/jujojurisopukofabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/51639399055.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 4

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_off00005d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D53 5480 bytes
SHA-256: 3a86aeb2a6150defd6f3f75abfe090ec4fa0720dd891d4cb67f8562f9cd92d5c
font_01_sfnt_off00007008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7008 10088 bytes
SHA-256: 52267b89f397d811b33a836059c861d8f7402fb39933911dbd59f3a541e9ac57

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