Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d902cbf577eea0…

MALICIOUS

PDF

42.0 KB Created: 2020-08-02 07:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad6c6493cbb9c4ebdb1fb36a9820eed1 SHA-1: 80f95e063885106ced3d93460acf2e55f65a0201 SHA-256: c1d902cbf577eea0f03422a548fb8bd0c225b8849f5469037f314a7d033099fc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes the URL https://ttraff.ru/pify?keyword=como+poner+acentos, which is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or malware delivery.

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=como+poner+acentos In PDF document text
    • http://files.happywillowsoap.com/uploads/1/3/1/4/131437037/91c6c9b.pdfIn PDF document text
    • http://files.raptattoo.net/uploads/1/3/0/7/130739488/8353511.pdfIn PDF document text
    • http://files.slaglesfamilyfarm.com/uploads/1/3/0/8/130873903/6479036.pdfIn PDF document text
    • http://files.somersetbrewers.com/uploads/1/3/1/4/131452733/0f5804cb595c.pdfIn PDF document text
    • http://files.miriamruberlartist.com/uploads/1/3/1/4/131483019/828517e6fc26dc2.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/1/0437/8935/3118/files/11740869394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/xakinoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6903/6958/files/usb_mod_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6175/5547/files/gisenozujevatin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1766/5701/files/2809663128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4470/9276/files/wesiximalesujoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9477/7760/files/87586809450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7814/7491/files/74285605009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/65965445189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/gujukozivokonovujepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/ludajudopetavixod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/50131784705.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_off0000631d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631D 4952 bytes
SHA-256: 32f40e639b5ede65897d29caef4ec033514b0e9905a47db5a7d198085594fffe
font_01_sfnt_off000073d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D2 12148 bytes
SHA-256: 87485515f9bc4bb4b368c18b63a7d63820ea4ff1c16e3e4a7e457a8906561551

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