Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bc28d6d4af36842…

MALICIOUS

PDF

44.7 KB Created: 2020-09-16 18:17:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46871e3b1b0a734a48ff2770dcec592c SHA-1: 046b7c38882f2a29e732b54f2da283b21bdc3146 SHA-256: 0bc28d6d4af36842a323d31a6a37e25e2128a62a124ed6a1a0d726b441a35ada
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to redirectors designed to lead users to malicious content. One prominent URL, 'https://ttraff.me/wix?keyword=perimeter+of+a+right+triangle+worksheet', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a phishing or scam attempt disguised as educational material.

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.me/wix?keyword=perimeter+of+a+right+triangle+worksheet In PDF document text
    • http://files.southsidebrewing.net/uploads/1/3/1/4/131453208/7557827.pdfIn PDF document text
    • http://dufoxepi.alccnj.org/uploads/1/3/0/7/130776824/vimatanidud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6354af5d-3f82-47ff-8457-662f1616d3d1.filesusr.com/ugd/e643da_552f29e52a2b4c07bddd646d0dfe80e2.pdf?index=trueIn PDF document text
    • https://7608fbf3-0031-4c19-8f76-94419b294b6b.filesusr.com/ugd/8e6e76_87457d9a5c514557a79f97c8902e1a20.pdf?index=trueIn PDF document text
    • https://ca8a597e-844d-4826-9131-419d8c62356f.filesusr.com/ugd/7d1dc9_751abbf220e546999e41625b76862ae8.pdf?index=trueIn PDF document text
    • https://519e0b21-74ce-457b-8432-79d97142d7b8.filesusr.com/ugd/529dbf_5313f0437064458b89ea6d5b9215eac0.pdf?index=trueIn PDF document text
    • https://c7e4e111-dc0b-44dc-8429-80be0be9c808.filesusr.com/ugd/b463f2_506b39de34c14719bf0fcfeb1c524188.pdf?index=trueIn PDF document text
    • https://7779d259-2020-4876-8ff3-d46c2b4fb4b3.filesusr.com/ugd/ab922d_69a2c029697f4786915394b34627070f.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/block_site_chrome_extension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/37344675784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5502/files/teacher_s_guide_grade_6_quarter_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5409/4743/files/thanksgiving_cloze_activity_answers.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 3

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_off00005c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C00 5340 bytes
SHA-256: 9ca97362de86f9ca71755c79abf3629b6b59d3077f0f2c16d0eb5b6a1aae23e6
font_01_sfnt_off00006e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E10 10036 bytes
SHA-256: 32a9b46826f97cb68dd0ab6a15f6a1065fe55175f86ad013a93072ffaee4bc0a
font_02_sfnt_off0000909d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909D 16196 bytes
SHA-256: 6ae61237400d33412f60a3aa131962030608fd104cae84d4ea987596d4ae31e2

Open this report in the interactive analyzer, or submit your own file for analysis.