Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bb4dabfb338716d…

MALICIOUS

PDF

49.0 KB Created: 2020-08-23 01:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 478a207d9294ab9e1371eeebbd8ee76e SHA-1: 2349ef40b0d6e9ec05fa20700b4a108a4c2fd41f SHA-256: 5bb4dabfb338716d5916db91b417195105608e90d3730cedf683621848969d3f
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, particularly the redirector at 'https://ttraff.ru/pify?keyword=filter+by+cell+colour+google+sheets', are designed to lead users to potentially harmful content. No scripts were extracted, but the structure and URLs point to a social engineering attack.

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=filter+by+cell+colour+google+sheets In PDF document text
    • http://files.rockingcleatherandboutique.com/uploads/1/3/1/3/131383510/7375545.pdfIn PDF document text
    • http://jasajabuz.camdentonpawn.com/uploads/1/3/1/4/131411688/jadubufej.pdfIn PDF document text
    • http://files.elisemoran.com/uploads/1/3/1/4/131452997/4065651.pdfIn PDF document text
    • http://files.jerichoadaptstoys.org/uploads/1/3/0/8/130874587/9530682.pdfIn PDF document text
    • http://gupiro.mianakajimonnier.com/uploads/1/3/1/3/131378950/9072748e.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/1/0433/0127/3758/files/1970118184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2857/3334/files/completing_the_square_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/free_professional_powerpoint_templates_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5503/7078/files/19159878146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/92947573202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/56853904915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9675/1771/files/wiwowelagenarewaguzisode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4822/9271/files/wokof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/55655187284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6647/files/37921152784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9744/7836/files/ginaforerawosexoxo.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_off00007aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA6 5048 bytes
SHA-256: fee87e810653a1c37c1389240a444f71a0e40d29299f8c9eb38d5efa9b9cb023
font_01_sfnt_off00008bd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD4 13564 bytes
SHA-256: 493832a387592d0d89b3013ed742035155d0ae9481fc1232c379d52c5014be4d

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