Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2f23c94db2bbdd…

MALICIOUS

PDF

43.9 KB Created: 2020-08-23 22:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2605e61b4307aab81f8de4e021d4437e SHA-1: 7413c899a9cac769037c5702a2d75db200e04152 SHA-256: 6b2f23c94db2bbdd782a2a250f1a7d87f07a09544e8deefb2d0f0999ae14ed7f
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, https://ttraff.ru/pify?keyword=play+store+alternative+to++paid+apps, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'play store alternative to paid apps' and the malicious redirector URL, suggesting a phishing or scam lure. The presence of numerous PDF links, many pointing to Shopify, indicates an attempt to create a link farm for SEO manipulation or to host multiple lures.

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=play+store+alternative+to++paid+apps In PDF document text
    • http://files.authorrebeccaarogers.com/uploads/1/3/1/6/131637034/wakobobo_jujorufaxeso_puxul.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/1/0438/7602/4475/files/netflix_app_won_t_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2746/3324/files/halo_reach_mcc_achievements_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2434/3462/files/blackjack_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/biogeochemical_cycle_of_carbon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4498/7292/files/autocad_revit_mep_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/liremefadonulizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2423/5170/files/21707772396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3874/4469/files/83472546474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/capillary_electrophoresis_advantages_and_disadvantages.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_off00006e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E44 5116 bytes
SHA-256: 330ae21a3faf295fdbe3f55bd217c394a880a1da76ddbecde28e48837e313789
font_01_sfnt_off00007fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC0 10328 bytes
SHA-256: 52ae44f462a744e03d14ff065cfcebccd42348378860040ae088a18a19ecaf4c

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