Malicious PDF — malware analysis report

Static analysis result for SHA-256 67682d5a8274a087…

MALICIOUS

PDF

33.1 KB Created: 2020-08-24 22:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 243f8d5364cbd731c525b6f145dc348e SHA-1: b05c7dcc158470abb8ea95fb82b9e829306e5fa2 SHA-256: 67682d5a8274a087f1365165c546e7dd0e0a36f971f8347deed9bb2637bdca2e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=barbie+princess+games++apk'. This indicates a phishing or malware distribution attempt, likely using a lure related to 'barbie princess games'. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the presence of numerous links suggests an attempt to drive traffic to malicious infrastructure.

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=barbie+princess+games++apk In PDF document text
    • http://nulefasu.enterhisgatescamp.com/uploads/1/3/1/4/131453718/wuworunoke.pdfIn PDF document text
    • http://files.nonprofits.dk/uploads/1/3/1/3/131383297/bavowu.pdfIn PDF document text
    • http://files.upstreamlearning.org/uploads/1/3/1/3/131381553/sivif.pdfIn PDF document text
    • http://mupex.mcstorytellers.com/uploads/1/3/1/4/131405927/vomoderugasebegekaj.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/1/0431/3337/0529/files/xuvetima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/year_end_report_card_comments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/guitar_backing_tracks_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/56122501412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/ejercicios_de_analogias_para_secundaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/85108400156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7810/6779/files/javascript_load_local_json_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/talani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/43215696423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/sopemekewegonemegokagovaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/21810792607.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 5

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_off000045c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C4 5472 bytes
SHA-256: cb05d487058b2615a5b7f7c87d01e72547ee2aac974a3073bb53443fbee7b97c
font_01_sfnt_off0000584e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x584E 9232 bytes
SHA-256: 28e1c0a94e8d435fa4a68ed0b554e8bee0789c69780a0c8f5e83ef76267fde88

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