Malicious PDF — malware analysis report

Static analysis result for SHA-256 7488fb3f39462910…

MALICIOUS

PDF

56.0 KB Created: 2020-08-14 21:27:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fa36e51095cb7d878acadf38e9c7c50 SHA-1: a40def9a21c045848a848cc1cd0ba395bbbb4e49 SHA-256: 7488fb3f39462910cc6b5ca4b7b62672e16743314b688b279d319517e74b0e63
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting it's designed to lead users to malicious sites. The document body, though partially corrupted, contains a URL that is also present in the heuristics and IOCs, reinforcing the phishing lure. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious classification.

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=autogenes+training+formeln+rauchen In PDF document text
    • http://vizawuga.sacredlivingspiritualcenter.com/uploads/1/3/0/7/130739616/xowovipuzaxeba-lofax-xolufiv.pdfIn PDF document text
    • http://files.sthreeauto.com/uploads/1/3/1/4/131409794/gifatoretaru.pdfIn PDF document text
    • http://files.balloontwistersdcvamd.com/uploads/1/3/1/0/131070911/4278832.pdfIn PDF document text
    • http://files.walshbotanicals.net/uploads/1/3/1/4/131453121/jigiwuzagebo.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/1/0431/5221/2130/files/vexazimibepek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5726/7359/files/zodusutezegujokugajut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6359/1583/files/google_map_customize_marker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9986/5756/files/wupamagegob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5300/7516/files/17302412945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8297/2326/files/3184063086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0056/8736/files/o_alienista_em_quadrinhos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/paxokawerawolumimeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3756/files/966944981.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 3

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_off0000917d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917D 5284 bytes
SHA-256: 465494d0e859b675bc04cbaa182cd499f2b64efdf562c7822223c8db85f1497f
font_01_sfnt_off0000a344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA344 15844 bytes
SHA-256: 0c587d72fd6532583720f3404c7057a40b25d68cf1804c974d229526947594a9

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