Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f00142ded3c9e0a…

MALICIOUS

PDF

43.8 KB Created: 2020-08-17 08:59:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 366e9b6b384c21f65d03e9e91a415e4a SHA-1: aa8763ac91b497b8210a108e1d5dcbf690362691 SHA-256: 5f00142ded3c9e0aec32bd6556b9cb0d89b460d340b208f6794f46636b63d28b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though partially corrupted, contains text related to 'Apple watch faces' and a URL that is also flagged as a malicious redirector. This suggests a phishing or malware distribution attempt using a link farm strategy.

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.cc/pify?keyword=apple+watch+faces+series+3 In PDF document text
    • http://vojolu.egitimbilisim.net/uploads/1/3/1/6/131606000/4569708.pdfIn PDF document text
    • http://nalep.troop198moontownship.com/uploads/1/3/1/4/131408024/sofoja.pdfIn PDF document text
    • http://lizozodut.samuelcjohnsonartist.co.uk/uploads/1/3/0/7/130776031/6263501.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/1/0436/3298/4222/files/xutokenadukozaneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/77306382397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8597/8018/files/creep_on_me_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4223/3755/files/54838157812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/pamawisujujiporogasezolok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0992/3493/files/wifuworofaxajotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/89829374747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7356/7901/files/pch_games_online_eggz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/techniques_d_analyse_biologiques.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_off00006e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16 5348 bytes
SHA-256: 8cf36e95919f8ca7f902a88637c339573296fe0c62189f971bc8431cd6520a01
font_01_sfnt_off00008053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8053 10096 bytes
SHA-256: e6c1d8499cc5a05d053ec692d4eb340bd88f9f5c3f28929d199cb0a676784eb1

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