Malicious PDF — malware analysis report

Static analysis result for SHA-256 05aef9d7e3bd1334…

MALICIOUS

PDF

47.1 KB Created: 2020-08-24 21:51:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4f2162ec743fe7df06c39625a221139 SHA-1: a35e7f10e7919290e0820232bc851ec416ebd64e SHA-256: 05aef9d7e3bd13347bd2fb16c86d4d7660ff6103c94428d274a05750f6e5ddc9
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm. The embedded URL 'https://ttraff.com/pify?keyword=spreadsheet+package+to+an+accountant+at+work' is a critical finding, suggesting a phishing or malware lure. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same lure text, reinforcing the phishing attempt.

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.com/pify?keyword=spreadsheet+package+to+an+accountant+at+work In PDF document text
    • http://jadujuna.mcmasterclimbingclub.com/uploads/1/3/1/3/131379833/wesuwarad-bigegokibusuben-nalefow.pdfIn PDF document text
    • http://files.extremechallengepuertorico.com/uploads/1/3/0/7/130775011/dixaferarep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2343/2861/files/71043199966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/92942247807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/porarodaxekatiruretafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/92994061216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3367/4396/files/56773476049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/22488511407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5301/3409/files/nodejs_validate_email_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/simplifying_algebraic_equations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/acceptability_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2697/2571/files/faledagofugerotanebaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/14336384221.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 2

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_off00006af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF5 5396 bytes
SHA-256: 4f27c34eb6f437d081464acaac8f15d47505743a2220b2f20ce7184c5f8f0198
font_01_sfnt_off00007d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4B 10444 bytes
SHA-256: 2f0b7b147b0df3300c60f7de0c2fa7aa78a3a86ec9c66a7bd00ef18c32765f0f
font_02_sfnt_off0000a0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0FD 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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