Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c3339666b84973e…

MALICIOUS

PDF

56.8 KB Created: 2020-08-13 21:59:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85441397c5fd60c18f32cacf443847b1 SHA-1: 0e984f2a56e88da5d2cc9a183f382c96451609c4 SHA-256: 6c3339666b84973e9e823a322bd138a7ba14c5b2ab7b5f5b37b6d8af0b7b8020
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, disguised as a movie download lure. The ML classifier and critical heuristics confirm the malicious nature of the redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to lead the user to a malicious site, 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=telugu+wap+movies+2018++3gp In PDF document text
    • http://sonudubez.the-learning-agency-lab.com/uploads/1/3/0/7/130775162/0407e3ffa093e6b.pdfIn PDF document text
    • http://files.ivoryoungequine.com/uploads/1/3/0/7/130740165/b0841e82d66f2.pdfIn PDF document text
    • http://files.thesainttrainer.com/uploads/1/3/0/7/130738822/6471597.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/79669628316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/homemade_adderall_recipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3234/6773/files/31871454370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/jejiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3680/2204/files/statin_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3994/7932/files/cs_lewis_the_weight_of_glory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1264/3223/files/personality_meaning_and_nature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6791/1842/files/dieta_aumento_de_masa_muscular.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000ac3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAC3A 17460 bytes
SHA-256: 201a7b7cb446722f809e96d9d7171ba4a856e3a9ce3fdd2cd853417d51309f5b
font_00_sfnt_off0000558e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558E 8800 bytes
SHA-256: f47b20eaf916122b970a72c462ff910b51e004a1c0c1a03eba40af420af44742
font_01_sfnt_off000072b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B9 5828 bytes
SHA-256: 2431c235af56a3c59fa4878b34757f76b5d2486c80774cf6eb471c7b649555d6
font_02_sfnt_off0000869f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869F 10932 bytes
SHA-256: 2a70b72fbbb74f8c8310bd0d7467a5158fe7aa171b6c674a54c2eb37e00c33d8
font_04_sfnt_off0000c649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC649 3552 bytes
SHA-256: c814523a46037333162bfea5844c0baf96a630b7d0913775e02dfac3ef78065d