Malicious PDF — malware analysis report

Static analysis result for SHA-256 be3a5b5cce0c0483…

MALICIOUS

PDF

34.3 KB Created: 2020-08-22 00:28:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31c16f6d15272f7bf1e7a41e4d387b6c SHA-1: 3da572b85a5ae0cfae8892f481523e030d0ba64c SHA-256: be3a5b5cce0c04830e880b8f1b75f80510e4686a401dadc615e7182825dbe5f1
194 Risk Score

Malware Insights

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

The PDF contains a high density of embedded links, many pointing to external resources, a technique often used for SEO poisoning or to redirect users to malicious sites. Specifically, the link 'https://ttraff.cc/pify?keyword=australian+digital+inclusion+index+report' is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files, suggesting a lure to download further content or visit a compromised site. The ML classifier strongly 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.cc/pify?keyword=australian+digital+inclusion+index+report In PDF document text
    • http://mamodow.scouttrout.com/uploads/1/3/1/8/131857054/e3669e802.pdfIn PDF document text
    • http://files.morterboard.com/uploads/1/3/2/6/132682883/notepixewalubedo.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/1/0431/5702/9019/files/binobiwevawomobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/metodo_descriptivo_explicativo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3067/3565/files/gegelujekod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/wudurewevugefunawuzawozan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/71816834096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/50924704894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/laws_by_plato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/taig_ios_9_jailbreak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4716/files/desk_calendar_2019_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0445/9168/files/adobe_premiere_elements_2019_win.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6085/4683/files/69890331696.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 7

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_off000047fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47FE 5296 bytes
SHA-256: c70acd7f3024d380a7259a8813f6b6c9e22e19fcc210f86dda1ae2dc4c6a08d8
font_01_sfnt_off00005a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0C 9604 bytes
SHA-256: 7b1ac6432cf10c5c9b880532f717dd2d7493d9e94b6086bbb5b3838bc8bdbc74

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