Malicious PDF — malware analysis report

Static analysis result for SHA-256 48f9467d61dd0b75…

MALICIOUS

PDF

46.7 KB Created: 2020-08-02 02:55:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f986b8b1d55cd1830fc863b919444eab SHA-1: ac3c585243c2736d9551377a469cb8d1ea0f5c3b SHA-256: 48f9467d61dd0b75e0d514d42f350c2694d77606b8cb452fba37dc7f15bc276f
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with many pointing to a redirector service (ttraff.cc) which is known to host malicious content. The ML classifier strongly flagged this PDF as malicious. The document body contains obfuscated text and URLs, suggesting an attempt to lure users to malicious sites.

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=ffxiv+ceruleum+field In PDF document text
    • http://files.erkko-trophy.com/uploads/1/3/0/8/130873941/xijewesutovafut-vugatotozivewu-vufoxuweput.pdfIn PDF document text
    • http://files.justenterprisecc.com.au/uploads/1/3/1/3/131398498/552163.pdfIn PDF document text
    • http://files.equi-line.net/uploads/1/3/2/6/132682787/wevatug.pdfIn PDF document text
    • http://files.subtleawakening.com/uploads/1/3/2/7/132710654/2072281f3.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/1/0433/6661/3141/files/xawidejapojukibopim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/korari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4369/files/10757741740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/3389918781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/44397599330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/jilifezojulen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2275/1643/files/xolunalurero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3042/1410/files/dezedagejigizuxatadig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/50803374968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/rapozidugapoxejurizox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2089/1798/files/lodokubomivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.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 6

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_off000078d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D4 4864 bytes
SHA-256: 70ab3bbb764e2292073ca6253a21d9422a5df1ecceae6448da12f3475f9ba99c
font_01_sfnt_off00008955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8955 10392 bytes
SHA-256: d9871bf3e152ab65e590ccaa0ae34c674e4815208f9dca12c34ee7d147435b80

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