Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b8bc78c0e9f476…

MALICIOUS

PDF

76.5 KB Created: 2020-07-30 22:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b3d7b918b5e2919f11fc53aaf960d41 SHA-1: 1908d85df2cbbc9d8180815112ba6cc0a36c6923 SHA-256: 01b8bc78c0e9f4763f5d6692a3c758c039ee2f336c0c79cb23b829443e3936d6
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 a phishing or scam attempt. The primary redirector URL, https://ttraff.cc/pify?keyword=brecht+das+leben+des+galilei+pdf, is used to lure victims with a seemingly legitimate document title. While no scripts were extracted, the PDF structure and embedded links strongly suggest an attempt to lead users to malicious content.

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=brecht+das+leben+des+galilei+pdf In PDF document text
    • http://files.sarahkramerharrison.net/uploads/1/3/0/8/130874368/5274079.pdfIn PDF document text
    • http://files.reelectjudgetabbey.com/uploads/1/3/2/7/132712545/xijube.pdfIn PDF document text
    • http://files.nicreconciling.org/uploads/1/3/1/4/131408930/visexejike_wusuwatuvef_wodux_jalonemoje.pdfIn PDF document text
    • http://files.apprazrapp.com/uploads/1/3/0/7/130740465/5f232ffc810.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/1/0433/0687/7080/files/17844710077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/muzubudatimog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1629/7368/files/69527957035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/34110683498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/30575224377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2679/2093/files/gulidikogazedabazetirilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8436/5468/files/zuxotanutetadis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/xiwuruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4325/8519/files/68843905453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/wejawazukavuxutexutenalir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0904/0803/files/najaboj.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_off0000ebf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF2 5284 bytes
SHA-256: c7684e4d4c57e2a3343a7d6f4ffbee447d4b2b0cd49a8533b4d843d2d26876db
font_01_sfnt_off0000fdd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD7 11392 bytes
SHA-256: 0f7c2a6c0c7939d46056082eb4e667b86c233f791eb2979c8ce6e0a6ac40491a

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