Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b2e255c43908f0…

MALICIOUS

PDF

40.2 KB Created: 2020-08-12 14:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36a708c912acf207e279e6d0e15ea92b SHA-1: 35e7ba0f5d66707439acd9e8c927c0dff9c9a144 SHA-256: e1b2e255c43908f0b128a813ac43dc12d90657167f42d691b7c57791daf5a87f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=carnatic+music+lessons+malayalam+pdf'. This indicates the document's primary purpose is to lure users to a potentially harmful site. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to improve the redirector's visibility. The ML classifier also strongly flagged this PDF as malicious.

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=carnatic+music+lessons+malayalam+pdf In PDF document text
    • http://files.alllifeisyoga.org/uploads/1/3/1/3/131379296/8206359.pdfIn PDF document text
    • http://files.ghostinspectors.com/uploads/1/3/0/7/130775249/7430753.pdfIn PDF document text
    • http://files.halifaxpto.com/uploads/1/3/1/3/131379761/duwofolunirojar-buvokojivimaza-zumefamatejen-zuluz.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/1/0427/4647/8759/files/ruzamebetozinol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7967/files/redis_install_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/958964583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vitalifurefafimeribedewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/a_soul_s_bane_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/business_plan_restaurant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8661/files/79835532023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5187/6509/files/severe_anemia_in_pregnancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7181/files/78801987066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/wadapavodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/gst_authorised_signatory_letter_format_for_partnership.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_off0000590f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x590F 5308 bytes
SHA-256: ea23b0acaaf4ee6c5da0650371d3fd43c77e6178e9ae2bb633a3dcb75aab9ec3
font_01_sfnt_off00006b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B09 13156 bytes
SHA-256: 01844c15a04088f80a711d522d0a755ddb255709e8573c2cb3b6d225b755d2aa

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