Malicious PDF — malware analysis report

Static analysis result for SHA-256 910c548edf523dd8…

MALICIOUS

PDF

44.0 KB Created: 2020-08-05 12:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c831419a2402fd72ea29c6e6cfde61a SHA-1: 38aa2156effdf0088dea6d97802703e3cd175835 SHA-256: 910c548edf523dd89848f5d689efbefa68830fbc4324820deafc3a1470b15ab7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=uncitral+model+law+on+international+commercial+arbitration+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an attempt to manipulate search engine results or distribute links across multiple benign-looking documents. No scripts were extracted from this sample.

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.cc/pify?keyword=uncitral+model+law+on+international+commercial+arbitration+pdf In PDF document text
    • http://files.lovehealthwealthself.com/uploads/1/3/1/8/131856672/ef5128.pdfIn PDF document text
    • http://files.xminimumy.com/uploads/1/3/1/4/131437044/5213490.pdfIn PDF document text
    • http://lemofe.2wolvesinc.com/uploads/1/3/0/8/130874524/janufise-vituwixad-fidiloli-zivefunog.pdfIn PDF document text
    • http://files.northernmarineinc.com/uploads/1/3/1/4/131437987/nuregeg.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/1/0432/1126/0062/files/negevevumuliwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/zujikul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/58017354681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/21128654009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/paradise_lost_book_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/19169751426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5322/5886/files/tifevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.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 6

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_off00006b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B55 5348 bytes
SHA-256: e47eb03be2cc2f2c05235cf60ac1a69df3e255113c6bd199176284d2c16ee512
font_01_sfnt_off00007d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7F 10844 bytes
SHA-256: a0be948bc46e0c45d4c635b300072a95534d27c243ac34c39454ec9bd1a94dd4

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