Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fcc54130ffdf0d1…

MALICIOUS

PDF

46.8 KB Created: 2020-07-26 09:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa5e6f2425e23da097a4ab6c8250e475 SHA-1: 5dc9c671fb197f3c766c333fc3c41aefc391a7d2 SHA-256: 7fcc54130ffdf0d106d73ae26de706d4ef1589dbbae04e1258f7aa06896dd17a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a link farm, a common tactic for phishing or distributing further malware. The ML classifier strongly indicates maliciousness, and the document body, though obfuscated, contains text related to an 'invitation email template' lure. The presence of multiple embedded URLs and the redirection infrastructure points towards a phishing or content-distribution 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.com/pify?keyword=accepting+invitation+email+template In PDF document text
    • http://files.heatherlynngilstrap.com/uploads/1/3/1/4/131452935/5132197.pdfIn PDF document text
    • http://files.4140designs.com/uploads/1/3/1/8/131856247/6245024.pdfIn PDF document text
    • http://files.musicalfuturesdlownloads.org/uploads/1/3/1/4/131453068/bibodos.pdfIn PDF document text
    • http://files.info-integratedtherapysolutions.net/uploads/1/3/1/3/131398145/4b82b34afe.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/1/0428/9029/7507/files/zogowikepokobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7668/0870/files/gibamitagunipowuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/kunipaladeferarusebites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/76332226870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/gituwexesiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23313492251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8099/1395/files/rejokedijunebodajiwot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0010/3071/files/81980269485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1642/files/sudeloxateriruxekivejapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/52709086067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/70917011477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6587/6390/files/bipiwe.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_off00007ba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA0 4816 bytes
SHA-256: a84b1d070b9f8b47d2c3f1fb3b4d507e0b2d48decf975c9e652461f435e754e1
font_01_sfnt_off00008be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE5 10044 bytes
SHA-256: d00fc492e596e70fcf3615a34ac5a6bd4735c0a58aa55a626624074ee22f5e30

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