Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb70d3e06936994d…

MALICIOUS

PDF

55.5 KB Created: 2020-08-07 08:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fd76845a817ba83da0ce74deecd78e2 SHA-1: c46775bf9bd238f59e4eb3f03a0dd9d051dc8d1f SHA-256: fb70d3e06936994df113900aa13fbad7da4c0b683a739f6233779ccef554189b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=capability+maturity+model+integration+pdf', points to known malicious redirector infrastructure. The document body itself is heavily obfuscated and appears to be generated content rather than user-readable text, further supporting the malicious intent of distributing links.

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/pify?keyword=capability+maturity+model+integration+pdf In PDF document text
    • http://files.greendogfarmcsa.com/uploads/1/3/1/1/131164568/4094412.pdfIn PDF document text
    • http://files.synergglass.com/uploads/1/3/1/0/131069869/fivajodasikadu_neposidox.pdfIn PDF document text
    • http://files.brighthope247.org/uploads/1/3/1/3/131383377/xuvotimudanaserep.pdfIn PDF document text
    • http://files.animalmedicalclinicsawgrass.com/uploads/1/3/1/4/131407547/f11fae6ffa114.pdfIn PDF document text
    • http://files.8870adventures.com/uploads/1/3/0/9/130969748/xajubarabop_vafumatoxuroga_kuserezaf_tujokifepopugiv.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/1/0437/1755/8426/files/compress_to_smaller_size_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/247_bridge_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6421/4182/files/bipeludedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/lavulimavedogeveviton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/segorokavegibaxopokituxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1064/files/acura_tl_type_s_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3772/6622/files/74503596226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/49124832239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/87428473472.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_off00009b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0D 5328 bytes
SHA-256: 5bf1506f9ec911b2717628f6346a7248159d18c5dcd797e85bc921ec4d66e10d
font_01_sfnt_off0000ad1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD1B 10588 bytes
SHA-256: 79c2616627d1d75a8c1dc393f52b5d5e633d23e06f77ccb860bb5a07c625bc08

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