Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d7aa6c44b0fbb2…

MALICIOUS

PDF

56.7 KB Created: 2020-08-11 09:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 161acfb8d21acbe2ee76cb37ece11c16 SHA-1: a88a6e26b22cb15cf505c082b395e19ba6d50750 SHA-256: 82d7aa6c44b0fbb219e52d8d146e8c6562a53a736622ebf0b067085ee6927f12
194 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as legitimate research documents, but ultimately redirects to a malicious URL. The heuristic firings indicate the PDF is a redirector and part of an SEO link farm, likely intended to phish users or lead them to malicious content. The embedded URLs, particularly the one pointing to ttraff.com, are flagged as malicious redirectors.

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.com/pify?keyword=positive+effects+of+globalisation+in+education+system+pdf In PDF document text
    • http://files.benbloor.com/uploads/1/3/1/4/131483955/visujulorefu.pdfIn PDF document text
    • http://bodawot.targetmarketingmedia.com/uploads/1/3/1/8/131871462/181b713be28dc2.pdfIn PDF document text
    • http://files.gracebecker.org/uploads/1/3/2/7/132740488/morupiwop-ropamazemoru-moven.pdfIn PDF document text
    • http://xepowuk.lifelybali.com/uploads/1/3/1/6/131606066/3351185.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/1/0439/1036/5339/files/banota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/gufisinizagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/laporan_pendahuluan_hernia_umbilikalis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6701/5329/files/ppmt_function_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/boy_s_life_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/17258405638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/47644807788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/busugalirifizowipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5560/2078/files/ditonunezarus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/48603283215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/29883963658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0274/9347/files/behavioral_cognitive_neuroscience.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
🗂 Part of campaign: benbloor.com 3 samples

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_off00009ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDB 5684 bytes
SHA-256: f5d462bfcf235ddc80edfdf1c09445f9dc28098c9a5fdc4247c44c0ab0d747fe
font_01_sfnt_off0000b12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB12D 10472 bytes
SHA-256: 291fa5df842f4165cd48e5428ac3a211d3f6fc27b375662a08d7acf49827b3ad

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