Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2da2bc1999b4cd…

MALICIOUS

PDF

37.9 KB Created: 2020-08-23 22:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9e50344b196f9a28cde2177e1ae04ec SHA-1: 04fe81b5d41cac8d2f11e60503c16bc21583c346 SHA-256: 1d2da2bc1999b4cddce75eb65849c1be4d5c9c2c7b9875eb3bad26960181dd0f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=alphabet+letters+to+color+pdf. The document body, though corrupted, also contains this URL and numerous other links hosted on Shopify, suggesting a link farm or redirection scheme to obscure the ultimate malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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=alphabet+letters+to+color+pdf In PDF document text
    • http://jubukexu.gracebecker.org/uploads/1/3/2/6/132683138/3248077.pdfIn PDF document text
    • http://files.noeleencosgrovemusic.com/uploads/1/3/1/8/131856279/6818246.pdfIn PDF document text
    • http://files.straightedgewindowtinting.com/uploads/1/3/1/3/131380308/somekuvatumovaroz.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/1/0436/4750/0448/files/64677966604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2512/files/foam_board_sheets_wholesale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0137/9996/files/brs_biochemistry_molecular_biology_and_genetics_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/81748848064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5359/4277/files/11941443225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8963/9077/files/mawosod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1159/files/76502407231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3064/2837/files/karuvonexiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/jelogopifetokegogidakok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/basler_gige_camera_manual.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_off00005696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5696 5372 bytes
SHA-256: 0571f499bd630ee62779c11bea52d4cdc595ae379fde1d03028626d7a664c10d
font_01_sfnt_off000068c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C8 10044 bytes
SHA-256: 243306d012ae91f47e426722b49dfbdef6f2a9d62b1f8821bdeb79666352086c

Open this report in the interactive analyzer, or submit your own file for analysis.