Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb322e76ee5600f…

MALICIOUS

PDF

47.0 KB Created: 2020-08-21 11:33:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a9b8bd8c58d85ded957e3a5c47e76a5 SHA-1: de1199c41bb88ee1fd6d09b9795fe9b103bed2f4 SHA-256: 1bb322e76ee5600f52c3e46f11e7e354e8aea5d33178819677059b2bf3ad1a9b
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.ru/pify?keyword=bahubali+2+movie++telugu+hd+1080p, which is designed to lead users to potentially harmful content. The document body itself is heavily obfuscated but contains references to popular media, likely as a lure. The ML classifier strongly indicated maliciousness.

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.ru/pify?keyword=bahubali+2+movie++telugu+hd+1080p In PDF document text
    • http://files.truaesthetica.com/uploads/1/3/2/6/132682048/lajepilaxu.pdfIn PDF document text
    • http://files.westpotomacart.com/uploads/1/3/1/3/131380870/dajesivarune.pdfIn PDF document text
    • http://files.pitbullsupinsmoke.com/uploads/1/3/2/6/132681576/1c9cb028342209a.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/1/0433/0776/1819/files/agriculture_board_exam_reviewer_with_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6095/3242/files/freshworks_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/67184781245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2441/2835/files/17604111740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1688/0281/files/pronunciation_guide_applesauce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7525/5961/files/litoxoturorisudatug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2481/3977/files/no_man_s_sky_thermic_condensate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3419/7666/files/lasisubulizufol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/nuxorodebexutibidevu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 5868 bytes
SHA-256: f69fdc0ff2e3f6a95666d4043c10fc1c173255db5d6899f38d2263f27e63902f
font_01_sfnt_off00007787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7787 10004 bytes
SHA-256: e6b3746b7f3574ed919fd4b53dbcac4c40b0b0b81d9e3cbe597cd3bf7ef7c11a
font_02_sfnt_off00009a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A08 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e

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