Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7749daac6faab55…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 10:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b6b80867d1b0369977d25ec59669619 SHA-1: 5c7a85f00adc3ef08f553bfb9d6e8809d207e6b6 SHA-256: a7749daac6faab55df9565fb30cf34e90fdf6702852bb7bcb2513f8fb8ba733c
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=bluestacks+iphone+emulator, which is likely used for redirection. The document body contains numerous URLs, many pointing to shopify.com, but also several unknown domains that could host further malicious content. The presence of a link farm suggests an attempt to manipulate SEO or distribute malware indirectly.

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.com/pify?keyword=bluestacks+iphone+emulator In PDF document text
    • http://files.warrickchamber.org/uploads/1/3/0/9/130969370/muvexuk.pdfIn PDF document text
    • http://files.speakingofveganfood.com/uploads/1/3/1/3/131398605/4204795.pdfIn PDF document text
    • http://korafora.urjcmun.com/uploads/1/3/0/9/130969600/3087196.pdfIn PDF document text
    • http://files.katejohnstonacupuncture.com/uploads/1/3/1/4/131408970/1506880.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/1/0430/9748/9572/files/list_of_mortal_kombat_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5106/3195/files/skyrim_castle_volkihar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pezudatilekubad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3787/6639/files/certificate_borders_vector_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5281/0911/files/vuzijigewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2666/1023/files/piluwulubesakokevil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9993/8211/files/introduction_letter_from_teacher_to_parent_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1008/0420/files/carcinoma_basocelular_nodular.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6610/5759/files/ill_guided_synonym.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0475/5096/files/45957810257.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_off00006e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E96 5284 bytes
SHA-256: 1bd90c9077aa91e2c91ec3b455a7feba951d3984bd1132927c119d1ed14190b8
font_01_sfnt_off00008056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8056 9868 bytes
SHA-256: a641a6451d6c339fcc68bf2bcc991eaaf7d91beede9c33e8bf4bf1b3e269d245

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