Malicious PDF — malware analysis report

Static analysis result for SHA-256 f906453a9a9fb434…

MALICIOUS

PDF

54.1 KB Created: 2020-08-07 00:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c0c640572e74bf00cca54972fdca2ed SHA-1: 3969f4a5d378f7f32835e21bb863ad99395f926f SHA-256: f906453a9a9fb434e32c4b1e05a62a71b30fcd2c9c80ec3b36ad3da96d0cbbb2
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=the+attention+economy+pdf', which is a known malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise.

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=the+attention+economy+pdf In PDF document text
    • http://files.danpetersundland.com/uploads/1/3/1/8/131856827/lozimopibig.pdfIn PDF document text
    • http://files.daviestreeservicesltd.co.uk/uploads/1/3/0/8/130814280/kamipabotu.pdfIn PDF document text
    • http://files.pemichoral.org/uploads/1/3/1/4/131407767/ruxevenasepik.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/1/0430/7435/5351/files/nezat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/biography_auguste_comte.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4875/4600/files/oh_kill_em_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/our_casuarina_tree_poem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/31535466078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/antifungal_drugs_in_ophthalmology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/metodemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/dual_booting_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3385/4103/files/21280383683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/98773047690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wotedosepano.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_off000095ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95FF 5140 bytes
SHA-256: 1970299dee4f427b7905f2ecc9c4139711c9dbf33732e45e8df4c8ad1fbca36c
font_01_sfnt_off0000a768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA768 10704 bytes
SHA-256: 47a8c6fbee0c0d3b0f7b48575441ecb0448f297528e61493434bccc6d88fdbde

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