Malicious PDF — malware analysis report

Static analysis result for SHA-256 d49b6b1f2ca97612…

MALICIOUS

PDF

46.2 KB Created: 2020-08-16 22:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4283328092bd316e7e85ecb295cbf13d SHA-1: 3899e7586e5c31c2edc43c7a0a8b8dcf5f19e9e9 SHA-256: d49b6b1f2ca97612bb9c9fd37a5c31f1466eb7636b35ff78b1a4273da8faa7a1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm, with one critical link pointing to a known malicious redirector at `ttraff.cc`. The document body, though heavily obfuscated, contains the same text as the malicious URL's keyword parameter, suggesting a lure for search engine optimization or social engineering. The presence of numerous links to Shopify-hosted PDFs indicates a pattern of distributing malicious content through seemingly benign file-sharing services.

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.cc/pify?keyword=hard+6th+grade+science+questions+and+answers In PDF document text
    • http://files.heartsoultours.com/uploads/1/3/0/7/130775017/ab5a6.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/1/0438/5469/2512/files/mmd_pmx_editor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0056/9751/files/14549727405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6116/4697/files/lasonunilasivadujaten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2165/5464/files/time_of_troubles_forgotten_realms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/bls_aha_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8757/files/retorika_at_balarila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2426/8968/files/anatomy_trains_myofasziale_leitbahnen_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5868/2273/files/bacteriologia_veterinaria_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9887/3762/files/30532757741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/lomirifabosejisifufap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7873/3224/files/entrepreneurship_development_course.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 3

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_off00006ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE4 5384 bytes
SHA-256: 1b099014cc3863bbcc1865f8c4f12a0bb587e8cc41891279e29d3e03b82036fd
font_01_sfnt_off00007d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2F 9364 bytes
SHA-256: 7450056c955f4727433e6677c696724347366c09f384f0cee8a559a2ddc69ef1
font_02_sfnt_off00009d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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