Malicious PDF — malware analysis report

Static analysis result for SHA-256 e21359886e764e1e…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 13:30:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e8e7ce271fcd7d0d51defc8c8032552 SHA-1: 82c5497066992ead6ec12cf6133a25aa91619a1b SHA-256: e21359886e764e1e0142f3cfb4daa7865927884486fd0d097f881288ad57c1bc
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL and a reference to a study guide, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting other PDFs.

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=grey+chinchompa+osrs In PDF document text
    • http://files.sniderthirdgrade.com/uploads/1/3/2/7/132740541/c4da5500d29f68.pdfIn PDF document text
    • http://files.michaelarubin.com/uploads/1/3/1/4/131408256/225ec7e0f69.pdfIn PDF document text
    • http://files.newsunyoga.co.uk/uploads/1/3/2/7/132740501/kewerigedav.pdfIn PDF document text
    • http://files.bringmorehappy.com/uploads/1/3/1/4/131454355/50bca6bb3839ba1.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/1/0430/4109/5834/files/ase_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/jovepozirogaxusopatejaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/fejemebowunarimonulerezuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/41582735723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/30672502218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/bedigixulabuwosige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/cabrio_dryer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/d3_node_js.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/10598550061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/xuborisejajafewagerelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/fubituvewos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7732/0352/files/27849267121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2749/5069/files/14384924971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/13145648663.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_off00006974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6974 5276 bytes
SHA-256: ea688b079948cef0f4999b6d383605a4940fcdd178faaeb02c2a54f6c1d87fb2
font_01_sfnt_off00007b44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B44 10420 bytes
SHA-256: 48cc5504fda751db08930bba7a3a54fd1beebe09403080d16e88de1afaeaa7ed

Open this report in the interactive analyzer, or submit your own file for analysis.