Malicious PDF — malware analysis report

Static analysis result for SHA-256 e51e41a0d09add7e…

MALICIOUS

PDF

69.5 KB Created: 2020-08-07 00:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f91da08779e04bf8561ee40ab5fc5b1d SHA-1: c726cff56b6ef25112bd213543c24a1d0e8d5799 SHA-256: e51e41a0d09add7e3cd2e43c5c66164db37744a6f0c48407e42ffb8beda48cd5
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of outbound links. The document body, though heavily obfuscated, contains the same malicious URL. 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.com/pify?keyword=character+of+satan+in+paradise+lost+book+9+pdf In PDF document text
    • http://rajolodeg.whitethornequinehealth.com/uploads/1/3/0/7/130738799/4637084.pdfIn PDF document text
    • http://files.ecocaregreen.com/uploads/1/3/0/8/130813639/barupuwelizisevubag.pdfIn PDF document text
    • http://files.christian-marriage-counselling.com/uploads/1/3/0/9/130969742/2095671.pdfIn PDF document text
    • http://files.love2bfitworkout.com/uploads/1/3/0/7/130775396/4cc69382.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/1/0430/6989/8914/files/24247214586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/tisugowemosimasew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6749/0975/files/55826384765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/familia_asteraceae.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/dimewovurelewisugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3916/1500/files/101_benefits_of_speaking_in_tongues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/jalevoditesun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/43932666079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2520/2332/files/practical_reliability_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/25337320158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9339/2536/files/calendario_lunare_2020_orto.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_off0000c719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC719 5508 bytes
SHA-256: 81b69c3b9f2a8a083d966e96077e2f7155aec5c58425d770df9bbd7d1791b95e
font_01_sfnt_off0000d9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C2 15108 bytes
SHA-256: a4613e275fa880fd9eed3c539d7d7761dbabf79dc90e33fa4f10c98166800414

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