Malicious PDF — malware analysis report

Static analysis result for SHA-256 85c8ef28d9d23444…

MALICIOUS

PDF

44.9 KB Created: 2020-08-03 09:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07cd28eb5ced41582e98c6062a8105ad SHA-1: f87507f12e2299d8b068ae8eacfa6ab78f8c391a SHA-256: 85c8ef28d9d23444379276aba132eb4b709f5008aca97392a9308541da3a4d03
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=suicide+squad+123movies', which is flagged as a malicious redirector. The presence of numerous other PDF links suggests a link farm intended 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.com/pify?keyword=suicide+squad+123movies In PDF document text
    • http://files.alaskafoodie.info/uploads/1/3/1/4/131453610/zofodarosezo.pdfIn PDF document text
    • http://files.roddypaine.co.uk/uploads/1/3/1/4/131453823/xerusafajifabiguloti.pdfIn PDF document text
    • http://files.wildberrypicnic.com/uploads/1/3/0/9/130968996/5715072.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/1/0430/8969/0773/files/55957122204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/jebimut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/78871477330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/dell_xps_410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/gilazipeviweto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/57109032416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/12001354303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/tafewukudisefona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/68022923786.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 5

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_off0000649a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649A 3388 bytes
SHA-256: a557a9124f4403c92d7aa7fefeef60f445de1f9c3632ae6ea1fbfee3f262ffd1
font_01_sfnt_off000070bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BF 5596 bytes
SHA-256: 840db7863669f3386af26b7848692bd258a0a0bcf262c96d0a425a66aa1cf7b9
font_02_sfnt_off000083c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C7 10112 bytes
SHA-256: 7d385d17f11ef817f301f74199f331939c1d2defaae3b0213e8280be8fde39d6

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