Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed3f736afc85eb7…

MALICIOUS

PDF

38.4 KB Created: 2020-08-22 06:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b69abe283ff5496ed3eb90a21fb6c347 SHA-1: b091563b69603c8d5092fbcd47d1bc2fad5d58a8 SHA-256: bed3f736afc85eb72791cd63632d96d78726b652de94fb5099909a3d6b7a3f03
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=reading+passage+1+flying+tortoises+answers`. This URL is embedded within the document body, suggesting a lure to trick users into clicking. The PDF also contains a mass external PDF link farm, with many links pointing to shopify.com, likely for SEO manipulation or to host further malicious content. The ML classifier strongly flags this PDF as malicious.

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=reading+passage+1+flying+tortoises+answers In PDF document text
    • http://files.freebirdcollectibles.com/uploads/1/3/1/4/131455832/xunusomukoj.pdfIn PDF document text
    • http://files.brain2gain.com/uploads/1/3/2/6/132696174/zegarivuluj.pdfIn PDF document text
    • http://files.colburnart.ca/uploads/1/3/2/6/132695416/7647794d5762.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/1/0431/0515/7284/files/dopitowaxovukizav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/64653171089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7297/0133/files/65610591805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/63380564799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/dilukokatosedisarisikag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/ripovagix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/jurnal_tentang_argentometri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3265/8588/files/xikatedudupejelana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/voluwimesekezisasafutodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/rumus_payback_period.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9177/7949/files/fraction_comparison_worksheet.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 7

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_off00005963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5963 5460 bytes
SHA-256: 842ddac9ebae222adf4201a65790bf11b875be5f1c0e54e07e1bb9c7684d3a1c
font_01_sfnt_off00006c24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C24 9756 bytes
SHA-256: 7a1b0b46e50b154f69f733db884984f87de92e1fd5eb5492db80c8d594b7a71a

Open this report in the interactive analyzer, or submit your own file for analysis.