Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c9623f4fea04231…

MALICIOUS

PDF

45.3 KB Created: 2020-08-03 05:45:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ffea662658b0cfbc670e27581bf026b SHA-1: fe29418a4346ffe422d631f5c1ca0eb0d6b432cf SHA-256: 7c9623f4fea04231ff93e6f1243efce1f5cd3ba4d2586959b32ec771ccbfaad8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to lure users with deceptive content like 'key and peele draft names'. The primary malicious URL identified is https://ttraff.cc/pify?keyword=key+and+peele+draft+names, which is likely used to redirect users to a second-stage payload.

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=key+and+peele+draft+names In PDF document text
    • http://files.firecracker100k.com/uploads/1/3/1/3/131380263/afe377feac32a.pdfIn PDF document text
    • http://files.irishbavarianmountainhounds.com/uploads/1/3/1/4/131437815/2769574.pdfIn PDF document text
    • http://files.fairfaxgammaphibeta.org/uploads/1/3/1/4/131407572/galosumupoxuridep.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/1/0432/1568/3743/files/new_tmux_session.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0133/1364/files/roadmaster_dunn_nc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/rumejafodamug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/16910965031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9390/8887/files/download_creator_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/tepozudugotis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/kokerasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/gibiwasefuduxenod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8577/4502/files/fukakipojodigojuzonub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/63788769502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/fozusav.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 5

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_off00007395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7395 5256 bytes
SHA-256: 651ce62ad93d2ebd76c21a36d5665fc64663455ff0b4339abe559b7f508ec5d4
font_01_sfnt_off00008574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8574 10304 bytes
SHA-256: f923c6a4cd23281929c4335d242bfcc9d4a2ec906d34aee5b4fd1c02ed0f4f4c

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