Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f32870bb98322cd…

MALICIOUS

PDF

36.1 KB Created: 2020-08-21 21:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76303e93cb8b52d6f120875d67375a2a SHA-1: e413c69037fd53fc794f989ed4f96904631b41d0 SHA-256: 2f32870bb98322cd8dc916036679094d25f9d144cbde27ed757fa7813e0eea5a
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link disguised as 'Navy brag sheet instruction'. This link, 'https://ttraff.ru/pify?keyword=navy+brag+sheet+instruction', is identified as a malicious redirector. The document's structure and embedded links suggest a phishing or redirection attempt to deliver a malicious payload.

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.ru/pify?keyword=navy+brag+sheet+instruction In PDF document text
    • http://nedep.theadminshub.com/uploads/1/3/2/7/132712116/xesejufu_birudolemobatid.pdfIn PDF document text
    • http://files.fernandoulibarri.com/uploads/1/3/0/7/130739116/tozumimedimurekos.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/1/0440/8714/8709/files/besivuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2633/files/minecraft_skyblock_apk_indir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2469/8791/files/ielts_writing_task_2_samples_band_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/xikatigipiforabiremadaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8541/1990/files/litam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6666/1800/files/xuwutigejabeviponisebevug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/vavawujawolaxunuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/avancemos_4_textbook.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 1

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_off00004f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F7F 5300 bytes
SHA-256: 71885f8fc82caca672af622e5d61b85a0c0cfb14be4b500f2a975131194a0543
font_01_sfnt_off0000618d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618D 10068 bytes
SHA-256: 0799e2ff9361db07dc6b8dbd9848a1478b1a3384a480020bf70905881d84b5ff

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