Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cee105f8c21b1a7…

MALICIOUS

PDF

42.9 KB Created: 2020-08-12 07:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2416ded2c524b563c659f099de6783d5 SHA-1: 7d4f529eeba5ca5e122c0d11fec921726d01808d SHA-256: 6cee105f8c21b1a7709b3a3ec4950d611c65fc143a26ea4b80f1754a15cf65aa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to a redirector service (ttraff.cc). This suggests a link farm or phishing campaign designed to lead users to potentially malicious content. The ML classifier also strongly indicated maliciousness.

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=full+apocrypha+pdf In PDF document text
    • http://files.vdspilates.com/uploads/1/3/0/7/130776131/narixaruzodi.pdfIn PDF document text
    • http://files.eastkentclassicmotorcycleclub.co.uk/uploads/1/3/2/6/132682868/4896960.pdfIn PDF document text
    • http://files.jenniferjoseph.org/uploads/1/3/1/4/131437174/lefumes.pdfIn PDF document text
    • http://files.ruinsofmodernity.com/uploads/1/3/1/3/131384025/7317994.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/1/0438/1723/8685/files/12027826379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/what_are_the_barriers_of_effective_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/28471220709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/90842564668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaxesajikibulunetegidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4455/9258/files/45076446720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/penaxofibulupowedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/kekisilidilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/lonovukewezunifabijazog.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_off00006bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC1 5120 bytes
SHA-256: a16fecd3e9c214518da28441240faaf52c6d6b7fae854ba39786449f4711610c
font_01_sfnt_off00007d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D29 10204 bytes
SHA-256: e2b3ec8c24ac8a1020ccc222bb0bd95f412d696663551fb7df44cfd3cb45d65f

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