Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e9d04c96a6841f7…

MALICIOUS

PDF

67.5 KB Created: 2020-08-11 21:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fb5ac771977291b0740851a1c51ffc2 SHA-1: 6753fd977346cc01ebfcacc68c48d62d1e65b2fe SHA-256: 5e9d04c96a6841f77104d691773d587f4ad91d801c4577f36083348891f6eb27
194 Risk Score

Malware Insights

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

The PDF file contains numerous links to external PDF files, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL identified is https://ttraff.ru/pify?keyword=light+reflection+and+refraction+class+10+worksheets+pdf, which is flagged as malicious. This indicates a phishing or scam attempt disguised as educational content to drive traffic to malicious infrastructure.

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=light+reflection+and+refraction+class+10+worksheets+pdf In PDF document text
    • http://delabexo.glaciertwinsbaseball.org/uploads/1/3/1/4/131409090/441332d98.pdfIn PDF document text
    • http://zupegop.everythingalcoholink.com/uploads/1/3/1/4/131438667/gupajer.pdfIn PDF document text
    • http://files.morristownsurgery.com/uploads/1/3/0/7/130775309/4738539.pdfIn PDF document text
    • http://tevetaje.wordsoundguide.com/uploads/1/3/2/6/132681670/1903420.pdfIn PDF document text
    • http://files.synopticroots.org/uploads/1/3/2/6/132695738/8010476.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/1/0433/1310/2998/files/12629270033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/multivariate_statistics_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/41197425987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9164/files/12801033896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/fabozodepeteni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6667/0745/files/waninozibagasokut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2141/7122/files/61174507220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2064/7576/files/audioslave_be_yourself_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/latex_in_markdown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jikoleluvotejagumali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8277/files/11th_chemistry_notes_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/23397884101.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FE 5708 bytes
SHA-256: 1367c38db72e1d80ab9f4107102aa4a6588f07d5c45e3c01e1bebc273f872470
font_01_sfnt_off0000c680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC680 10760 bytes
SHA-256: 6b7af96b45702aa43ffaf6f3a0fde3e9b94e3f3798aa9479dabb1c37b5c4a7d9
font_02_sfnt_off0000eb40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB40 16072 bytes
SHA-256: 24c5c481937acf4f4841e6563a6d7a18cfdb810806c94b09ac0ff4033348c1e6