Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db3dc6a312f41d7…

MALICIOUS

PDF

35.7 KB Created: 2020-08-20 13:15:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db927454e2ba3040c3bf3389092cff8a SHA-1: 7ea9cde5b5cdddf484be111613bde95725303037 SHA-256: 6db3dc6a312f41d79b929b3cd689d0b47069412d1a1efd695af1a6852e0952e5
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a quiz, directing users to the malicious URL. The ML classifier strongly supports the malicious verdict.

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=propaganda+techniques+quiz+with+answers+pdf In PDF document text
    • http://baliro.sam-james.com/uploads/1/3/1/3/131384600/1579705.pdfIn PDF document text
    • http://files.theinspiracy.com/uploads/1/3/0/7/130739366/xuwoxonepodexusivitu.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/1/0434/5711/8374/files/72075163413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/jomesasilixufep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1949/files/81202622604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4259/3189/files/24218630532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/45126572097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4741/files/chocolate_tamil_film_video_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2762/2046/files/tongue_twister_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4135/7973/files/25694512941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8333/9678/files/bonolusigenoxejivifujun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8277/files/audre_lorde_the_black_unicorn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/pogezetiwawufuvasides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/tivobip.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 4

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_off00004b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B1E 5656 bytes
SHA-256: ec7a156afbd068e8127eed17887e96dd56c9e0fd993ac01237eef0513d4467f2
font_01_sfnt_off00005e61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E61 10456 bytes
SHA-256: d8d5d8e44854e1db4257281d6076d7d2e3381a97ae207cf0b3d1f35149d1a56c

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