Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a10b9ee2773d4e5…

MALICIOUS

PDF

40.2 KB Created: 2020-08-27 18:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a84602041f7cd036be76078243e728a SHA-1: 57d072551f632b744ff1c5ffa6d9015f258da80c SHA-256: 0a10b9ee2773d4e53f726698b7afe77d1f00d3e31121679fd1b311a754cb6a13
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, many of which point to a redirector URL that is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely leading to malware. The presence of numerous external PDF links suggests an attempt to create a link farm for SEO manipulation and user redirection.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=blue+exorcist+movie+english+dub+download In PDF document text
    • http://durezom.ginkgopress.com/uploads/1/3/0/7/130776023/3361233.pdfIn PDF document text
    • http://watok.artisanhandfood.com/uploads/1/3/2/7/132712336/jetuliwamebu_jevotojig_naxuposa.pdfIn PDF document text
    • http://files.tierrasantajuniorwomens.org/uploads/1/3/2/8/132814906/656685b8.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/1/0462/2932/3930/files/cad_blocks_cars_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/sawuroxojipuvekuxowedez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6525/3792/files/20036029065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/votovosefiragoluzuwun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/farapun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/vumir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/sadobowavodaperubib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/votatowolilupebopurezuje.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BF 5760 bytes
SHA-256: ee63f9e48cd4b43d216198c3a86ee6dc98ed2336e09798f0de883d34973ebcfd
font_01_sfnt_off00006641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6641 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00006ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECF 10816 bytes
SHA-256: 0870fafabaf8da665f8122bf80bced82db292d78175a3ea2c6cade49c89cc6dd

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