Malicious PDF — malware analysis report

Static analysis result for SHA-256 150b6bf055585b12…

MALICIOUS

PDF

33.9 KB Created: 2020-08-21 17:06:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c7a1866cfc384bbb29697efe3ec41ef SHA-1: 05028ffaead5eb1a1f1facd82d2471b3deb9a82b SHA-256: 150b6bf055585b123e18c2160dad7ac538edb09e4f2c6d0e8fa4a8a91a0105d5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to create a link farm, redirecting users through a malicious URL (ttraff.cc) to a purported free download. This behavior is indicative of a phishing or scam attempt, likely using a spearphishing attachment as the initial access vector. The ML classifier strongly supports the malicious nature of this PDF.

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=cinta+luar+biasa++andmesh In PDF document text
    • http://files.kingsfellowship.net/uploads/1/3/0/7/130738971/5393ef7e7728.pdfIn PDF document text
    • http://files.daaa.org/uploads/1/3/1/6/131606890/dae9f824a8f054c.pdfIn PDF document text
    • http://files.coburgantiquemall.com/uploads/1/3/0/8/130874495/309eb832.pdfIn PDF document text
    • http://files.brushdartistry.com/uploads/1/3/1/4/131438557/gojatudunapowu.pdfIn PDF document text
    • http://pazewori.godlovesyou.tv/uploads/1/3/1/3/131383664/9060112.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/1/0430/6557/3537/files/fokivovatoridef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8543/0945/files/nobotimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4299/4336/files/36447902171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/dugijefofuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2617/7438/files/fallout_4_unlock_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6269/files/44373696703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/99456186317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26160609228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/6389442072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5075/2417/files/25121040670.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_off00004822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4822 5108 bytes
SHA-256: b8d801f4511806269d7832cd40c7746004ad8ce6f1d1977bc404ab652118a5b1
font_01_sfnt_off0000593e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x593E 9864 bytes
SHA-256: b323626361bc1bb7393aaee61f8122eb43e54779ccf78b80d25e8b21b9dbe162

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