Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf89eaa557cbabf0…

MALICIOUS

PDF

45.9 KB Created: 2020-08-23 02:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 723f34a5d0990c7411de570a3722c545 SHA-1: 01c12b62d2100b5ce8e3b2525a4768c5c588f01a SHA-256: bf89eaa557cbabf049b7fb65a065acf70675a0550b08e7ea35a5162b883ff8b6
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic indicates that the document links to a known malicious redirector infrastructure. The primary lure appears to be a link disguised as a search result for 'new bollywood movies online free', which redirects through 'ttraff.cc'. This suggests a social engineering attack aiming to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=new+bollywood+movies+online++free In PDF document text
    • http://serofexe.eghsbandboosters.com/uploads/1/3/0/8/130814106/bexejeroxufajo.pdfIn PDF document text
    • http://files.shopkoco.com/uploads/1/3/2/6/132682813/gezafurefexafu-wikure-wexul-bozexozanok.pdfIn PDF document text
    • http://vojibires.jaycommunityrecreationalcentre.org/uploads/1/3/1/0/131069806/8787887.pdfIn PDF document text
    • http://files.darmatechnology.com/uploads/1/3/1/1/131164295/bolupuxogowuvolebu.pdfIn PDF document text
    • http://files.olliedudekplaysbass.com/uploads/1/3/2/8/132814303/3653073.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/1/0431/7829/5450/files/vegirapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/video_song_dj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/10368351713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/33323461332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/an_introduction_to_statistical_learning_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/30647815510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4002/6273/files/black_hawk_down_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/sosijevulepefizipuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3051/0742/files/xabutirofolagoxujolatowas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8910/6846/files/gds_pay_committee_report_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/xijikexikakem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2127/7096/files/bruice_organic_chemistry_solutions_manual.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7678 5208 bytes
SHA-256: 30bb1a4a771377478560492deb5564902867e052c94da3720bc4c20ba8fb67ec
font_01_sfnt_off00008831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8831 10060 bytes
SHA-256: 0668a18d63d3bcb1b5e3b9dc92758f7afc181ca128d91a8f24a44b02019c4f6e