Malicious PDF — malware analysis report

Static analysis result for SHA-256 1697c5724c9a718f…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 16:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ebc2929187aa980b6139d4c015f2afb SHA-1: b5d9f7e23c2931fd66bf41febe027cbbbef912ba SHA-256: 1697c5724c9a718fdf8c3bdb3efa75e866781dde898d947b786515fba1c102d9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service at 'ttraff.ru'. This service is flagged as malicious and is used to obscure the ultimate destination of the links, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. No scripts were extracted, but the presence of malicious redirector links is sufficient evidence of a malicious 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.ru/pify?keyword=blowing+in+the+wind+ukulele+chords+pdf In PDF document text
    • http://files.globalcenterforsuccess.com/uploads/1/3/1/6/131637224/b17958144887a0e.pdfIn PDF document text
    • http://files.mlcptsa.org/uploads/1/3/2/7/132740623/pigume-zifatako-guwepojuvutozaw-xiwemedojakeve.pdfIn PDF document text
    • http://rojuju.plymouthmusiclessons.com/uploads/1/3/2/7/132740805/nojapesudifomej.pdfIn PDF document text
    • http://files.oakstreetpto.com/uploads/1/3/1/6/131606670/bebezubuwavizixobava.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/1/0433/5733/9803/files/arte_bizantino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/advantages_and_disadvantages_of_work_life_balance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1977/8720/files/probability_worksheets_7th_grade_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/97119754970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/verb_to_be_past_affirmative_negative_and_interrogative_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/a_clockwork_orange.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8956/6623/files/23863781716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9927/files/70540037441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8602/7677/files/25850716638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/wawedolevejubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9335/files/butujimuwuxoxejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5983/2982/files/infrastructure_engineering_and_management_grigg.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 7

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_off00005847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5847 5412 bytes
SHA-256: d30574700fd393a3ffcf07fa4429bb46fb375a2fce46fec3afb5aa0c3c819367
font_01_sfnt_off00006abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABF 15092 bytes
SHA-256: 0dcb0933f58601e0916814eba852a14b99478561bc585af01841ceb97e51c626

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