Malicious PDF — malware analysis report

Static analysis result for SHA-256 01919e4d040ebb12…

MALICIOUS

PDF

198.4 KB Created: 2020-08-24 01:27:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 506120c86f075ac76118d2cb8395f6be SHA-1: 347fe17002344b3f1f9dccfc9081aed0ef80c3e9 SHA-256: 01919e4d040ebb1214e7d82b9275f885439101efb27f84a6d87663e6ff1bcff2
142 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.com'. The document body, though largely unreadable due to encoding, contains the same URL. This suggests the primary purpose of the document is to lure the user into visiting this malicious site, likely for phishing or to download a secondary payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=idsa+mrsa+guidelines+2016 In PDF document text
    • http://files.safsj.org/uploads/1/3/1/3/131381640/8085115.pdfIn PDF document text
    • http://gajoru.rstne.com/uploads/1/3/2/8/132814930/8351640.pdfIn PDF document text
    • http://mefaner.3blossomscafe.com/uploads/1/3/2/8/132814439/3079174.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/57649942859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8364/files/logegiperazot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/juvitup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/9694706245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9523/6513/files/vikixoxabibejowevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7693/5073/files/raresozivegepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6428/7651/files/bupusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/canadian_citizenship_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2147/3691/files/relative_clauses_exercises_3_eso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/230_220_x_0._5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/xenazane.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002a524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A524 5256 bytes
SHA-256: c57baf985c52bf6fa59ecdecfa441b485d7c62f53ffb9bf662d63b89d85ad967
font_01_sfnt_off0002b6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6D9 15368 bytes
SHA-256: b216cda6dcd2150db2c7739871042e4899797d3939a07e26762b3f96f012aee9
font_02_sfnt_off0002e7da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7DA 16148 bytes
SHA-256: 43dd7310e986e37c0562d6efd2a67b6291a0d41fa892ecd43b306c3e7231f7b7
font_03_sfnt_off0002fcd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCD1 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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