Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee80d95cd18f977…

MALICIOUS

PDF

38.9 KB Created: 2020-08-13 07:36:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6184ff42f9505ba6ce2d6328af64574a SHA-1: fad6ff1a767eb28105fa7387007f8256d007480d SHA-256: 6ee80d95cd18f9775d38cadfb5c417cbd20a88939ce5ed8ab689deccd7796517
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 that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that appears to be part of an SEO link farm designed to lure users with search terms like 'buku ajar hukum ketenagakerjaan pdf'. This suggests a phishing or scam attempt disguised as a free resource download.

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/wb?keyword=buku%20ajar%20hukum%20ketenagakerjaan%20pdf In PDF document text
    • http://files.lepinkandco.com/uploads/1/3/2/8/132814166/desuviwisu.pdfIn PDF document text
    • http://files.coloradohomerepairandremodel.com/uploads/1/3/0/8/130814343/a6823a06f72.pdfIn PDF document text
    • http://surupisox.muse2320fiber.com/uploads/1/3/1/6/131607407/foderanivedaje-polirari-saniwixixesen-tuzafowugikilan.pdfIn PDF document text
    • http://vumux.acromarco.com/uploads/1/3/2/8/132814930/pujifaxoj_gesuniwi_migobileba.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/1/0438/4620/5602/files/elements_of_aerial_photo_interpretation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0147/files/kelilopoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0554/5369/files/wibud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2304/6568/files/25016806939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/latezub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7173/2889/files/vawakulejipowesagojope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1195/5098/files/92926606473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/37539805580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7347/8560/files/gemupukizivubaxal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0345/9230/files/55090455605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/rakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/10603862813.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 6

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_off00005a57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A57 5436 bytes
SHA-256: fa97c40fb167f12fd4ef4817442e3bb9e80e11a5038a490f76473b37757ba6a7
font_01_sfnt_off00006cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBD 9880 bytes
SHA-256: df7a7346c0b07de525aec34ae4d6d810bf8d9e74ad5119f533036a6668223ec8

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