Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad8b700d90778fa…

MALICIOUS

PDF

39.3 KB Created: 2020-08-23 19:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e857ac4202f7409543fa20dafb3b071c SHA-1: f58d500f8ac94bbd4176f9a274e77d4ab9546d90 SHA-256: 6ad8b700d90778fad644c9ae613d61253a6e5091389b96c1611d7568e4c28c8c
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with the primary lure being a fake 'Windows 7 ISO direct download'. The embedded URL `https://ttraff.com/pify?keyword=windows+7+iso+direct++microsoft` is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a malicious site, likely for phishing or malware distribution.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=windows+7+iso+direct++microsoft In PDF document text
    • http://files.activeambassadors.org/uploads/1/3/1/3/131381607/xekojowog.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/1/0465/1519/1966/files/aha_cpr_2015_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4816/3733/files/babette_s_feast_isak_dinesen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/37803182042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/molecular_genetics_mcq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/14228856760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1832/2839/files/this_afternoon_in_reported_speech.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/18157662366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4708/4447/files/wordly_wise_book_8_lesson_10_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/basis_sap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9902/0696/files/kigeluwuxuwow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6213/0853/files/73680256514.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 1

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_off00005d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D42 5112 bytes
SHA-256: 4105fa70411440ee550f809484791ca06d06964387af1b3c08e7399cd3cea3e8
font_01_sfnt_off00006eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAA 9980 bytes
SHA-256: 70853a695a4ca08dea3e815608a742d950ab9b3e5a5aae13971dd50e33a3df6d

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