Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48dc0f5d6b1abb9…

MALICIOUS

PDF

74.3 KB Created: 2020-08-10 14:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfa1194c5f63ebd480fecff9d43bdcb3 SHA-1: 2d04405098603bfe427732a4afad17c755f9bd26 SHA-256: b48dc0f5d6b1abb9d6930db18bc2f79f4245542078daee8ec086f376a7968521
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests a phishing or redirection attack aimed at leading the user to malicious 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.ru/pify?keyword=atharva+veda+in+telugu+pdf In PDF document text
    • http://files.matimba.com/uploads/1/3/1/0/131070212/7e35f.pdfIn PDF document text
    • http://files.bradswoodworking.com/uploads/1/3/0/7/130739247/wakinilakukigifugas.pdfIn PDF document text
    • http://files.tarpanmanagers.com/uploads/1/3/0/8/130874124/4176531.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/dopivolewosurofinosinozap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/wii_operation_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/tatap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/38228019414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/83109796521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/voxabelilix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7728/8611/files/budgeting_and_forecasting_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8173/files/cambio_climatico_en_mexico_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/86326379598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/metabolismo_de_la_bilirrubina_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/kigidajowarinodojex.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF3B 5172 bytes
SHA-256: 846f6b6c65276146b835df7029189450e31a67f5ff0b305de9833f0576c57792
font_01_sfnt_off0000d0d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D4 7372 bytes
SHA-256: 36d144b1553f5557ffbe46ec0d933b44bc74b306aad1930491fab4244bb0e8ef
font_02_sfnt_off0000e76b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76B 11604 bytes
SHA-256: b6edf89385f9ca629a5c9a05da0598b71656b6200721471ce4249bf251e96d3a
font_03_sfnt_off00010c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C73 3584 bytes
SHA-256: 88d6ba090c2de92f3be8d032ea93eee52a5d619d854fad13ac2a7db649db89bc

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