Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fdf00a1f766083a…

MALICIOUS

PDF

54.0 KB Created: 2020-08-11 08:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e405cb681a3f339abecd8a85171b2a6e SHA-1: 2df9f265186a938fb901a5b6786a8ca2409fb830 SHA-256: 6fdf00a1f766083a8cc9e927d62f1df2c049d5203bc1fbff43720c85726dd53a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution.

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=medical+tourism+malaysia+pdf In PDF document text
    • http://files.thecelestecollection.com/uploads/1/3/1/3/131384559/7091187.pdfIn PDF document text
    • http://files.johnlockheating.com/uploads/1/3/2/6/132681517/pokesifuvofuna.pdfIn PDF document text
    • http://files.annasunchoi.com/uploads/1/3/1/6/131637881/7380a6af3.pdfIn PDF document text
    • http://files.theartfulyarn.com/uploads/1/3/0/8/130813630/lufujagajanuvu-dunetope-wafokajoju-nenavazip.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/1/0433/3505/7559/files/wodikatataridib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6608/7838/files/wapezupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/dobanenekinagutelaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/maxomisop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/love_after_love_poem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/zonarevofadez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4093/0983/files/64358979033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3820/2273/files/dofidakibowerajuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1528/1568/files/alguien_esta_mintiendo_karen_m._mcmanus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/wibikederilexufezizatilar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6797/3538/files/wiguzibivibozem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0431/3247/files/cinco_facetime_party_snoozer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/reduce_size_acrobat_reader.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 1

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_off00009496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9496 5408 bytes
SHA-256: a3436c1a2a7786b7da788118f8be1c2396a77f71ebc8061e011d3477deb0e538
font_01_sfnt_off0000a6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6EE 10472 bytes
SHA-256: 8899026b937680a006e7df01a75231cff1453d6f63896cbf8c0684a5fbb5fa8c

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