Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd8e234fb00b2f0…

MALICIOUS

PDF

51.5 KB Created: 2020-08-06 06:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c8d6c1ddc93319c8b60acb1f5749964 SHA-1: 3c935ed4bf919a5cdb6a7b3c28f62dec3efc4871 SHA-256: 0fd8e234fb00b2f0d079105572ba24ca54ea89b961dbcbc930fb6e2a6df24cee
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector disguised as a biography of leaders. The primary malicious URL, https://ttraff.cc/pify?keyword=biography+of+leaders+pdf, is designed to redirect users to potentially harmful content. The ML classifier strongly indicates maliciousness, and the presence of numerous external PDF links suggests an attempt to manipulate search engine results or distribute further malicious content.

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=biography+of+leaders+pdf In PDF document text
    • http://bizegov.kcolvininteriors.com/uploads/1/3/1/3/131383775/519a0ea3660.pdfIn PDF document text
    • http://files.nikkidarling.co.uk/uploads/1/3/2/6/132681359/2885029.pdfIn PDF document text
    • http://files.maysclub.org/uploads/1/3/1/6/131636855/993968.pdfIn PDF document text
    • http://files.anthonygibbs-art.com/uploads/1/3/1/3/131383384/117009.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/1/0431/0797/5330/files/94335853853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/lavabaludutari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/76677680698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/75008779189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/the_hobbit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/40321268294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/foxit_editor_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/dovekuvitunojamazote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/musufirajepugeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/55268946404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7275/7668/files/70913434194.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 2

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_off000089fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FC 5456 bytes
SHA-256: 1f32463489c9ec262f5aa0305445363fd231353688b4ecb3d825cd0686bcd0d6
font_01_sfnt_off00009c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C94 10712 bytes
SHA-256: f1f0ddb4cd89cd4443c2b16bf067d1411c7af94e9de04e4c317ca9519bfd729b

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