Malicious PDF — malware analysis report

Static analysis result for SHA-256 bff6a9013a6921c3…

MALICIOUS

PDF

58.7 KB Created: 2020-08-31 05:27:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 018f02df33e36f397e2ea37bc1fa9d54 SHA-1: bf98ee551792277fa04e1c3afd9b7fa0444325db SHA-256: bff6a9013a6921c3982ec0c45f0e7a2e60b3946e69caa54d2ecb366acb4a203d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a prominent link disguised as a download button, promising a 'championship manager 01 02 crack free'. This link directs to a malicious redirector at 'ttraff.ru'. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm used for SEO manipulation to attract victims. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=championship+manager+01+02+crack+free In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/fizijopisorijonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/jemaboko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4101/2382/files/gelix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8089/9989/files/pinizasageg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/93487870428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9105/8078/files/jugejipopezotarimer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3482/9222/files/49640846822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8367/7339/files/bimusosodaganuleta.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1b161b164b5f4d57951872d53b4992f4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fedf23_1d2a5c424e944ed8923302b87f401023.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/856cea_6966a082820f406db26fa505b10d5f88.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_6e43aeba9e79492dbf2cae5d68a824a9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e2f7e1_319dfe4abf5041f2bd9dd573144daa7b.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C2 3212 bytes
SHA-256: d9c0a8ab968be60eeae79898da3d45d40692608b0848a70543de12d7c70dbe36
font_01_sfnt_off00009340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9340 5520 bytes
SHA-256: 93d40c0b9a13180e93152ab2f3b2456020f2c4f2ae887a1096b2ac94c30a0019
font_02_sfnt_off0000a5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5DA 12664 bytes
SHA-256: 8e10afb3fa7365a2ac936041a98b2a5f4947c61759a2a45309dde7e14bf29c70
font_03_sfnt_off0000cf6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3