Malicious PDF — malware analysis report

Static analysis result for SHA-256 707af099bab153bf…

MALICIOUS

PDF

35.7 KB Created: 2020-08-20 18:38:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f73275f54483fe76da210f2073ae988a SHA-1: 64551e143aa5b32d3827f7ea475daafa4c5466a6 SHA-256: 707af099bab153bfb3840b587b83fc91768322b4589dfac931f5b8efa2a0c363
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com). This suggests an attempt to distribute malicious content or conduct phishing by disguising the true destination. 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.com/pify?keyword=http%252F%252F+biologycorner.+com%252F+worksheets%252F+controls.+html+answers In PDF document text
    • http://files.donandmargieabroard.com/uploads/1/3/1/0/131071076/f2b818fc74ed0.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/1/0431/9562/9725/files/67000736878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/61605663245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/lil_flip_sunshine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4101/2382/files/64089078943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9835/8165/files/sazifupawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/joripatofovupogekulimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/a_hat_in_time_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1438/8892/files/java_beginners_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1325/0972/files/zujelurugaguva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1184/9892/files/uou_assignment_front_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7556/6749/files/the_knight_s_tale_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5625/9491/files/gowuxasudomivuzoxamelim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7978/files/69761433629.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_off00004c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C51 5772 bytes
SHA-256: ce0274db6b215ed2c451552ce492097f15f69727db4205a93e7929506ca1a693
font_01_sfnt_off00005fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE2 9908 bytes
SHA-256: 9aabd06c7b9cabdf24f8cf12664c542555334a196bcb95a19ea3c6a80b7f9c31

Open this report in the interactive analyzer, or submit your own file for analysis.