Malicious PDF — malware analysis report

Static analysis result for SHA-256 7767272b5b337ad2…

MALICIOUS

PDF

47.7 KB Created: 2020-08-18 15:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b678aaf619088804290eaeaad705a32 SHA-1: 46bbbf7bca9b578d3183edced11915ee4faeee80 SHA-256: 7767272b5b337ad2fdd2094404b1574df8bdc9de826b9bf9401c7a447ee8ac9f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, but a critical heuristic identified a link to a known malicious redirector, ttraff.com. This suggests a phishing or malware distribution scheme disguised as a download portal. The ML classifier strongly supports the malicious nature of this PDF.

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=chupke+se+song++mr+jatt In PDF document text
    • http://files.garritylpc.net/uploads/1/3/0/7/130740249/4994035.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/1/0433/0687/7080/files/55742160690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/61740020770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/30754599913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/rulemojegixirusuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4582/6210/files/autentico_2_core_practice_answers_pg_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/10700890979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0280/5921/files/33429071451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8036/files/kizimorowo.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

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
stream_005_off00008744.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8744 24792 bytes
SHA-256: e1837f03f07712bf73a2f75bcc85e412e2c5ee370dc18a96e53046e608361079
font_00_sfnt_off000052b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B9 5248 bytes
SHA-256: d50efcf797061149c807185c71bfe11506ba05caa54e21e964de9b08e1080174
font_01_sfnt_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 10120 bytes
SHA-256: ee19efa653c96eed1ac6f7e4fbbbce757ee47a0db026fc11cff16480e3a70575

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