Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3a18da6c73f399…

MALICIOUS

PDF

43.0 KB Created: 2020-08-08 02:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c1db18d6df413cfea1f056d70c9288b SHA-1: 4ab11959bc6c482c99ba410b0ef32dc9492bc14f SHA-256: bd3a18da6c73f399fc21a1ab83ac111d8de508ca06b6507ff32991f257cc0f98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ancient+greek+religion+mikalson+pdf. The document body is heavily obfuscated and appears to be a lure, likely intended to trick users into clicking the malicious links. No scripts were extracted from this sample.

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=ancient+greek+religion+mikalson+pdf In PDF document text
    • http://wemubofav.courageousgirls.com/uploads/1/3/0/7/130739826/4704727.pdfIn PDF document text
    • http://files.alexstudio.bg/uploads/1/3/1/1/131164448/875fbb5e4c12d5.pdfIn PDF document text
    • http://files.microbesbymarco.com/uploads/1/3/0/7/130775434/lobodojonowalazib.pdfIn PDF document text
    • http://files.ichdesigns.com/uploads/1/3/0/9/130969776/vizexemiruze.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/1/0451/8169/8199/files/being_alive_company_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1666/7815/files/del_staigers_carnival_of_venice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4743/files/79698256907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/30142963121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/50363162543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/23093349354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/bujadugetugema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/88343257086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2908/6876/files/58417828279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4149/6981/files/pebevipuvewaledapipogiwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/dubosisofosovuvemi.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_off0000669c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669C 5528 bytes
SHA-256: c309116f5c335cc7c0ebb7e99ee41067bf9194c2e3d827576ed99dc43ffe7b32
font_01_sfnt_off00007958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7958 11268 bytes
SHA-256: 5b19d0d720cf094d5afb8e73c485e70c80e99cfb94c2f6b59fa6e149a7bc78f8

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