Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec6af68a64640585…

MALICIOUS

PDF

43.5 KB Created: 2020-08-27 16:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fbcadaf309964dc90d8d2a10c1493f8 SHA-1: 10a5f955acf3758562dd6cfe75a1872804595e80 SHA-256: ec6af68a6464058535b525a25f8abfd220f7cefc1a5b75c0b99cd5be27e37f2e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=principles+of+product+development+flow+pdf'. This indicates the document is designed to redirect users to potentially harmful content. The presence of a PDF link farm heuristic further supports the malicious intent, as it suggests an attempt to artificially inflate search engine rankings or distribute links to various resources, one of which is confirmed malicious. The document body contains obfuscated text and the malicious URL, reinforcing the attack pattern.

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=principles+of+product+development+flow+pdf In PDF document text
    • http://files.sharingfamilymemories.org/uploads/1/3/2/6/132695543/wavosupivag_gitem_najekuvowug_puregoxazonej.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/1/0437/2620/9175/files/cat_3406b_fuel_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8071/1325/files/sasenesozukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9131/9200/files/93846315983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2994/4730/files/skull_base_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2657/7565/files/jirig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/add_watermark_to_software_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/81107427275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/36281249571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/swami_ayyappan_songs_masstamilan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/sibumubotobit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9657/8979/files/58262158797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/24812321061.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_off00006d08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D08 5244 bytes
SHA-256: 3ca76f7f411f5ff11bbbc42707f79cb311f7b8b3bfdf25c2005843d0b56e16d7
font_01_sfnt_off00007ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED8 10072 bytes
SHA-256: d91c984466298a885fc53d4a2a142f60b784d2da8d20c0dd2155ba2ca0644740

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