Malicious PDF — malware analysis report

Static analysis result for SHA-256 adaea2785814a88e…

MALICIOUS

PDF

55.0 KB Created: 2020-08-08 11:24:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6b03cf98d39e2f5667f3a867e43fb2b SHA-1: b559651bee551c1d63cc538a48e441d1b5d75cd9 SHA-256: adaea2785814a88e1fb314a744fdf66339dd6a190304a8a0aaa97a573a331127
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the URL https://ttraff.com/pify?keyword=albumina+humana+bula+pdf leads to known malicious infrastructure. The presence of numerous other PDF links, as noted by 'PDF_SEO_LINK_FARM', suggests a link farm or spamming campaign. 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=albumina+humana+bula+pdf In PDF document text
    • http://files.rwtcownerstribune.com/uploads/1/3/1/4/131482968/zafumineluxibef.pdfIn PDF document text
    • http://files.akia2013.org/uploads/1/3/1/4/131438150/8947848.pdfIn PDF document text
    • http://kukakikag.nhtassoc.com/uploads/1/3/0/7/130740517/6465506.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/1/0431/2462/1473/files/26025152386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/bruce_dickinson_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1627/3576/files/bisalofigoponivabivefinib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/39660062217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5267/6773/files/32811504956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6631/8230/files/matizoxarod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/16202357643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6525/3792/files/61751278908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2116/3941/files/34366632063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/21976477485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3183/0421/files/vepemejemimujepob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/51307751786.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 1

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_off0000961a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961A 5136 bytes
SHA-256: 70d84b73103af86938c275684ba9ff4373164b24552c8f1ce0db71d23f8f9e68
font_01_sfnt_off0000a766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA766 12220 bytes
SHA-256: 5cc21f7464c0351b7bb69cfc316cb33a91b0870ab5590a991e972d9258baaba5

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