Malicious PDF — malware analysis report

Static analysis result for SHA-256 155753f4caa61d6a…

MALICIOUS

PDF

50.3 KB Created: 2020-08-26 21:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c05835477d17bf92f106ceeec0daf74b SHA-1: f917572720a7d449c935a43ce48eca8f0a190788 SHA-256: 155753f4caa61d6a0d18698e151c03e7130879496f91b1048b92daab413d5480
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a redirector infrastructure at ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, appears to be a lure for an Ayurvedic medicine list, likely a phishing or scam attempt. The presence of numerous links to Shopify-hosted PDFs suggests an attempt to appear legitimate while distributing malicious content.

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=himalaya+ayurvedic+medicine+list+pdf In PDF document text
    • http://budaj.firstbaptistfta.org/uploads/1/3/1/4/131406430/zesimekimegibo.pdfIn PDF document text
    • http://zifaguki.tajaddodorthodontics.com/uploads/1/3/2/8/132815002/03cb82d1b7e26.pdfIn PDF document text
    • http://jodivi.nicolejonestroy.com/uploads/1/3/0/8/130813490/ecf9faee45c8ce.pdfIn PDF document text
    • http://nupovi.allendaleunionchapel.com/uploads/1/3/1/3/131384306/lazodenop-betuxivesemosax.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/1/0433/4652/6361/files/bukonubidavisukulozifoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/gamuvevipawubibamexezeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/41064342629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3502/files/business_administration_thesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2480/8096/files/95391104332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/54780639352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/bartter_syndrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/71571290093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9154/6532/files/angielski_b2_ksika.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 8

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_off00006e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5F 5424 bytes
SHA-256: 6700f978206b05170dced5f96fcfbcfdce7ce97fc85ec7d0fccd3c3b82c72ded
font_01_sfnt_off000080b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B9 10412 bytes
SHA-256: 7ca698a01c05a00ce8f792c668a1549b02cad9e188b682bd678901f1b5c8b11f
font_02_sfnt_off0000a494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA494 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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