Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e66836a8d0457a…

MALICIOUS

PDF

35.5 KB Created: 2020-08-10 01:00:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72439f0774953b35a999d8ae3af01172 SHA-1: e4f6de30e2d4a63c33f27f0782a18cc1f59de5cb SHA-256: 49e66836a8d0457a7154ca35f9fcba2634057a3e5f3a613d1eebabfcc45e5ac1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=rains+of+castamere+sheet+pdf', suggesting a lure to download further content. The presence of a link farm further supports the malicious intent of distributing links to potentially harmful 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.cc/pify?keyword=rains+of+castamere+sheet+pdf In PDF document text
    • http://files.krgriffiths.org/uploads/1/3/0/8/130874129/96dffd9.pdfIn PDF document text
    • http://rubufaza.liveandletlive.co.nz/uploads/1/3/2/3/132303382/6064354.pdfIn PDF document text
    • http://files.mittelmanassociatesarchitects.com/uploads/1/3/1/0/131070230/xamuwofisubozirenaja.pdfIn PDF document text
    • http://files.hunterkallay.com/uploads/1/3/1/6/131606325/11dd725268150a7.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/1/0436/2895/3763/files/calendrier_2020_tunisie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/bojetivuvoxibewor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/62941785637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7378/1408/files/kuvewasabobubez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vojinanekarab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/75107644101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/detukotunobilowidobutos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/at_last_i_see_the_light_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1287/files/catechism_of_the_catholic_church_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/nemuxevoteloxesazakewevur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/kepeliforujafuxegexufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/aiag_fmea_manual_free_download.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_off00004cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC0 5368 bytes
SHA-256: 7af08cb94a70ad40a9baa08a619d073c82e57ee517d2b302fbaf7fc8182da51b
font_01_sfnt_off00005edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDC 10120 bytes
SHA-256: 81161b0f844ae2c5f0a69176eb84c7d974b5897bd0c00f5eff555b64886140c9

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