Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6aa168550b79eb6…

MALICIOUS

PDF

46.3 KB Created: 2020-07-30 08:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a58ebc8f520c4ff84940c933de5b403f SHA-1: ab307d4ccd8c15b745a5ef8d142d414cea9d2bed SHA-256: e6aa168550b79eb6e35dfaddb5f53debc3e26b446a0a8fa629593887e899422b
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. The heuristic PDF_SEO_LINK_FARM indicates a link farm, and PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to '2020 hindu calendar pdf south africa', suggesting a lure to attract users to click on the malicious links.

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=2020+hindu+calendar+pdf+south+africa In PDF document text
    • http://files.threeatlantacats.com/uploads/1/3/2/7/132740307/vifomolegoxaka.pdfIn PDF document text
    • http://files.elliseffect.com/uploads/1/3/1/4/131482884/pulevexo.pdfIn PDF document text
    • http://files.centerforspiritualawakening.org/uploads/1/3/0/7/130775231/repilogigura_kelidofafalovo_gadenedaloviv_luvebu.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/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3816/8472/files/41683962008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8859/3571/files/neletozawagonijajukipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/4998/files/31251468375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1003/0759/files/benetiwademejofejin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/kemokalerosemevogobuwej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4963/2415/files/ratudatisivofiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/dexozenorezole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/20510652570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jikoleluvotejagumali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/55483648498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/ponapazum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5630/7107/files/65869092368.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D18 5304 bytes
SHA-256: 255ec052d8938bdce2077ce02f2bc17afd22e6c8df7b14706b2cc181dfa90f70
font_01_sfnt_off00007ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF9 2024 bytes
SHA-256: a511fb262e2f240b0cc62b800179189f1c69c7b4d67d938f9bc0c5e12ef74554
font_02_sfnt_off0000888e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888E 10504 bytes
SHA-256: 0d0c855d053f70d21ad3aa0e5fc26366fe2bcfbc8bc5904c6b9acc82e3ca5dad

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