Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aad139852c0c52b…

MALICIOUS

PDF

38.1 KB Created: 2020-08-25 05:56:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60ed3db13d36e18b91d86664357221cb SHA-1: cecf3920161c9eff9b48a5d8ed80a83f2ef934ae SHA-256: 7aad139852c0c52bb3164c17ed50db236da0577ccfddb322b2540acd85b5b983
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=5.+s%25C4%25B1n%25C4%25B1f+sosyal+bilgiler+test+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to this malicious site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO manipulation tactic to distribute malicious content.

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=5.+s%25C4%25B1n%25C4%25B1f+sosyal+bilgiler+test+pdf In PDF document text
    • http://files.reventnews.com/uploads/1/3/2/6/132696512/gobajoxorijazuxuwe.pdfIn PDF document text
    • http://files.shepherdoflife.org/uploads/1/3/1/6/131606819/4e389fb3c6.pdfIn PDF document text
    • http://files.realjackoftrades.com/uploads/1/3/0/8/130874050/4800150.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/1/0457/4923/9964/files/android_studio_auto_remove_unused_imports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9787/4851/files/surface_area_of_prisms_and_cylinders_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4202/8182/files/takasitadelisipap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2460/5599/files/coordinate_geometry_worksheet_class_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/kujovanegevunawose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/xaxivifazufagizago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/jakapedigen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/vexevexixed.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_off00005541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5541 5544 bytes
SHA-256: f055588cb7e9bdf9c955b9b50dc34245f6a4426c20386fb3b22125a1f808cf4e
font_01_sfnt_off00006836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6836 10416 bytes
SHA-256: 956c7255431260abf34696e8c72b2a3fe1934a55d04411e87d4bc072fc8f140b

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