Malicious PDF — malware analysis report

Static analysis result for SHA-256 da6483aea1442c2d…

MALICIOUS

PDF

41.2 KB Created: 2020-08-20 05:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66deaa4e1bfef898d9264a2a111c43a3 SHA-1: 0f79a1a2eefdc96b5ff008ea6ce530955104692e SHA-256: da6483aea1442c2df069d11c7516ce93f0e68598e3255316c6325a2e91b3344f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Kelantan tourism guide' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a mass external PDF link farm further indicates malicious intent.

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=kelantan+tourism+guide In PDF document text
    • http://files.cspo-watch.com/uploads/1/3/1/3/131380729/jimar.pdfIn PDF document text
    • http://vupiv.foxfieldrecoverymission.org/uploads/1/3/2/3/132302868/kanipuwubug.pdfIn PDF document text
    • http://files.jovaunholmes.com/uploads/1/3/0/8/130873973/818c81.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/1/0436/9160/6170/files/ancestral_guardian_barbarian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5572/6238/files/caracteristicas_del_aprendizaje_colaborativo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/49846725861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/50785640120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0822/0574/files/larizorisibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/25978881176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/vivah_film_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/bifiwifefojujowodimeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1786/9211/files/52601268116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/nisutizuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/7815/8245/files/kowogomamarosobup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/valisefevirakezabosito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/sbi_online_net_banking_form.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D3 5112 bytes
SHA-256: 7835298d5e65379210a99befb308b12337b65ecaf99ab9f2f9f213796159574d
font_01_sfnt_off00007620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7620 9980 bytes
SHA-256: b3d86f1466d0a194f782ba30a73d6b02c2825040e43f0350e17c71be8be1a988

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