Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b65aa4d6f5b10e6…

MALICIOUS

PDF

50.1 KB Created: 2020-07-28 10:07:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7837d68f09d1f920fba01bfc21cb0b15 SHA-1: 2cdbfc14ffaedd4d8e400fc2915f0765b0cea17a SHA-256: 4b65aa4d6f5b10e67a8ccb29e97aaf369f6730cf7ce4dc438d3da5e0ee56ba3a
254 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=terraform+aws_s3_bucket+inventory'. Another critical heuristic indicates a large PDF link farm, with many links pointing to Shopify domains. The document body, though heavily obfuscated, appears to contain keywords related to Terraform and AWS, likely as a lure. The primary attack pattern involves social engineering through deceptive content and malicious links to redirect users to harmful 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=terraform+aws_s3_bucket+inventory In PDF document text
    • http://files.board.solonchamber.com/uploads/1/3/0/8/130814611/ea8cd82f55.pdfIn PDF document text
    • http://files.godswaytshirts.com/uploads/1/3/2/3/132302815/7c24d7928c8eda5.pdfIn PDF document text
    • http://files.myleftlane.com/uploads/1/3/1/6/131636903/bukarigozi.pdfIn PDF document text
    • http://files.jplotitocompany.com/uploads/1/3/0/8/130814172/0ff6d0a.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/1/0428/9835/8432/files/86372263330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7348/4438/files/21471634505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7905/5000/files/43428052512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4116/0344/files/42622409468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/61956716138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/kubisolitelusimimad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/degufefodifozunuxufojiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/7475346995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/sakasaxoxuredalerekot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3278/0695/files/99609887005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2594/8072/files/peradezaginab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45598155969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2983/files/83089741613.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

Related samples 8

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_off000083d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D2 5480 bytes
SHA-256: 57473354548fdeb1f1e089b819b4dfdc4c911bfbafafa4a6316fd0a9fbc5c508
font_01_sfnt_off0000968a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x968A 10632 bytes
SHA-256: e90cc66522984218a32b571926b689d9b9a2b89de05820acd167587592b86404

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