Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2f0462b2b916193…

MALICIOUS

PDF

66.3 KB Created: 2020-08-08 12:17:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 060feeb7149c53ff222ccb4d4942bb4b SHA-1: 213fbc9c4615a8c2b191c60f1b143c2dc58ba876 SHA-256: b2f0462b2b9161937df5d9685dac0ca5ba283be75fb9673b03ae254467633a84
202 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=bacteria+found+in+water+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains fragments of the URL, suggesting an attempt to disguise its malicious nature. The presence of urgency lures further supports the malicious intent of directing users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bacteria+found+in+water+pdf In PDF document text
    • http://files.hilltaxis.co.uk/uploads/1/3/2/3/132303359/vijepepuwiki.pdfIn PDF document text
    • http://files.nationalhellenicsociety.org/uploads/1/3/0/9/130969742/5302860.pdfIn PDF document text
    • http://files.doitforthemems.com/uploads/1/3/0/7/130738712/cb834c20384282.pdfIn PDF document text
    • http://files.bournemouthjrc.co.uk/uploads/1/3/0/7/130775466/ninebolavonuke_pojejo.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/1/0431/1321/8199/files/51113685456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5122/1143/files/84495393816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9585/8088/files/levemilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/ap_calculus_limits_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0925/3281/files/66451551776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6662/1094/files/42306486096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/interview_questions_for_bca_freshers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0806/3649/files/17086425457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7613/0718/files/the_history_of_computer_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/62514147371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/xotugupifofujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/84486413520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5347/2151/files/reasons_for_absenteeism_in_the_workplace.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC660 5080 bytes
SHA-256: 6ea7fea92a0ccbfb985d65d65f3558ae4346cc257dfaf01025d5d58cbbd9ee34
font_01_sfnt_off0000d7cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CF 10552 bytes
SHA-256: 01ec3287e841b23eb23d643022415c788ad1d2afbffb2a7a6fe838a9232b6e01