Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f0d1b7688a13059…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 15:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7671ff346be01210414db86267f34017 SHA-1: 64573cfa8f00f6b79e80fe2a17be372451dc43dd SHA-256: 5f0d1b7688a1305904466407c3889bae98d615c922292c61b0e20f336e85cb96
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to redirectors and SEO link farms, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains a URL that appears to be a lure for an 'accountant jd pdf'. The ML classifier strongly flagged this PDF as malicious, and the presence of redirector links suggests an attempt to lead the user to a malicious site.

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=accountant+jd+pdf In PDF document text
    • http://laviba.idlewoodvenue.com/uploads/1/3/2/6/132681556/bobomug_daxigifanajiwex_gawixegow.pdfIn PDF document text
    • http://files.agiteysirva.com/uploads/1/3/1/4/131453695/minitokateka.pdfIn PDF document text
    • http://files.tallmrhall.com/uploads/1/3/0/8/130874026/jufawilisir-lewivuvo-fixoluvagokino.pdfIn PDF document text
    • http://vifam.stern-line.com/uploads/1/3/2/6/132682646/dd8fbf06.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/1/0436/6496/5782/files/kazolobuzakagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6511/4523/files/fujiwivibari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9685/files/tunosutiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0733/1739/files/basidiomycetes_fungi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9306/4870/files/90092791174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6264/7189/files/9783335370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/yajur_veda_avani_avittam_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/45596148385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/whatsapp_video_call_please.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/87965736585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/powelivul.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000675b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675B 4908 bytes
SHA-256: f5b51408d8e8b02b894603b15af0aa4e795956ca31b7aac0f5fbecf4f5eb1bff
font_01_sfnt_off0000782b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782B 10076 bytes
SHA-256: 172b27d942f5a717b12f4034d0ddf309affbd462c4f310f45ead7a37d697e15f

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