Malicious PDF — malware analysis report

Static analysis result for SHA-256 f21c9b20ddc4724e…

MALICIOUS

PDF

44.1 KB Created: 2020-08-05 07:04:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b0acdfb84ec80266d31723b27cc56db SHA-1: ea606c55947090193fef73e4efcb41bd6b99a5c5 SHA-256: f21c9b20ddc4724efbfeedc6d101cf7d461ee831a3d24e9b87058eb7780a4e18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body text and embedded links suggest a lure to download a CV PDF, which is likely a pretext to redirect the user to malicious content. The PDF also contains a link farm heuristic, indicating a large number of external links, many of which are hosted on cdn.shopify.com, but the primary malicious indicator is the ttraff.com redirector.

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.com/wb?keyword=good%20example%20of%20a%20cv%20pdf In PDF document text
    • http://files.voiceconsultingaustralia.com/uploads/1/3/1/4/131454549/c57d73.pdfIn PDF document text
    • http://vizuxano.welcomeneighborftsmith.com/uploads/1/3/1/4/131482976/72158efe1f68433.pdfIn PDF document text
    • http://files.kevinpollarddesign.com/uploads/1/3/1/3/131383478/fa3a82.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/1/0436/4432/1945/files/gondongan_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/24580783670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/rozovifabofoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0512/3493/files/28254660393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/lobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5069/5830/files/13154011230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1959/7981/files/89523553735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/2007_lexus_rx_350_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7349/files/14251628762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/29954667100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/dososekilewuvi.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 1

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_off0000657f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657F 5184 bytes
SHA-256: 658c2d19f6c0539671134afb0df3afb70ec4f1ea2bd70bc083f5e6b971b0f319
font_01_sfnt_off0000772c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772C 14580 bytes
SHA-256: c2bc65739f6ed372ffb162985bb149b2352e1fe25f20964d510667d5826451a8

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