Malicious PDF — malware analysis report

Static analysis result for SHA-256 8864a16a256d9447…

MALICIOUS

PDF

42.6 KB Created: 2020-09-11 05:15:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a86a314663d93555f70e77b38b17221d SHA-1: 89fbfe0fe0bf4fd289dbf6399e9b82df64e228ec SHA-256: 8864a16a256d94473f1ca9d3699836994613e186f22674f129220b9db08151bc
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for potentially malicious content. The document body, though heavily obfuscated, contains references to 'Android smartwatch comparison' and the malicious URL, suggesting a phishing or scam lure. The ML classifier strongly indicated maliciousness, and multiple heuristics flagged the presence of malicious redirector links and a link farm.

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.club/pify?keyword=android+smartwatch+comparison In PDF document text
    • http://files.mooreequineevents.com/uploads/1/3/0/7/130739308/7015087.pdfIn PDF document text
    • http://files.lisbonfallsnazarene.com/uploads/1/3/1/6/131606056/181d6f07.pdfIn PDF document text
    • http://xizomux.sixpetalsretreats.com/uploads/1/3/0/8/130814328/f4e0b65f86e7.pdfIn PDF document text
    • http://nibiv.nvhandsandvoices.org/uploads/1/3/1/8/131871590/c461860.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/1/0434/4587/8950/files/kakiguvipupibisatokugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/70406552296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/samabutikoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4144/8090/files/fivafisemozerabebikibuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/xisavez.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1b8612_4daae7edbce5468c96e9745be0c7d76a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/10b11f_1f41875c166748dfa86e5223040e17b6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0cb7a68ba40f40898af76c2d6bd1c429.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b7ab08_cff1dbee517d4857b418c164bcdb78bc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ef1ea_0770ff03b8714a4bbac2dbb84c07af46.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3649d2_ecf272c9bf6849dc970456acb32af6b3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/54fa57_d0c7142a67cb4baa8c8ed96df5812cf5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1bc57fe92d904c698ebd51c6cf7399c4.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 5

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_off0000675d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675D 5360 bytes
SHA-256: 24aff5fd4106e1461f8ff9fe57400e47a99762a16ffd7597b81055a4db070963
font_01_sfnt_off00007980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7980 10548 bytes
SHA-256: 2740fd79e56ed9fb9db70cff3e29fd0cf24efd256a2e71d3df4ab522c532c873

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