Malicious PDF — malware analysis report

Static analysis result for SHA-256 f501a1d94fecc4c3…

MALICIOUS

PDF

54.4 KB Created: 2020-08-24 01:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b3ee836491067bf31ea1fc2de4a5bd8 SHA-1: 3c71bffe2eb390ac0b03968a3936460c96e5585a SHA-256: f501a1d94fecc4c391157670cb751f7f6c8f82a59bd89731d62608b7aeadaa9e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=binomial+expansion+theorem+pdf', suggesting a lure to a malicious site. The presence of multiple unknown URLs further supports a malicious intent, likely for phishing or malware delivery.

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=binomial+expansion+theorem+pdf In PDF document text
    • http://wadenu.yellowsnowproduction.com/uploads/1/3/2/6/132681670/ff8c2fc4.pdfIn PDF document text
    • http://files.b2w2.org/uploads/1/3/1/4/131453559/fujop.pdfIn PDF document text
    • http://xufawu.youthmusicaltheatre.com/uploads/1/3/1/4/131437657/wolovigisazufipatus.pdfIn PDF document text
    • http://tidarevin.maroonedinfourthgrade.com/uploads/1/3/1/3/131398338/6906485.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/1/0430/8742/9785/files/pawozisam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/varicella_zoster_virus_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/nufelafetuxudiruxopeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8900/2653/files/swot_template_excel_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5653/6475/files/heavy_rain_ps3_trophy_guide_roadmap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4852/2143/files/romun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7946/7162/files/economia_ambiental_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7252/7267/files/shakespeare_sonnets_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/16192394229.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_off0000769f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769F 5400 bytes
SHA-256: 07c6d6360fd91a318e61b32e8a5fc4dec0739b8f26988073016a7efc34e7940e
font_01_sfnt_off000088c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C2 14412 bytes
SHA-256: 3400f9c9ad6ca0f287bbf9d5492dcb706314635bf18c30aac19b977c928eaa9f
font_02_sfnt_off0000b6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6FC 16324 bytes
SHA-256: fd1748777c1e8fda5826c2da1b66e6e2dbf0146b9bb229afde15293a3a0eb95c

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