Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2990343c1b434ca…

MALICIOUS

PDF

38.6 KB Created: 2020-08-31 02:09:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01017aa6bce14d386a0f3ec60601dda6 SHA-1: 413c90c8b48f273fd9f546748b8b947c8765d7a9 SHA-256: f2990343c1b434cac817e8fcc4fb35c0bce59ce93483eeb0cf7dbd746369ebe7
150 Risk Score

Malware Insights

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

The PDF contains a clear lure for a "Hitfilm serial code" which redirects to a malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger scheme to generate traffic, likely for malware distribution or phishing. No scripts were extracted, but the embedded malicious link is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.link/wix?keyword=hitfilm+serial+code
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/pathfinder_wizard_feats_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/19431837461.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/95596516571.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/vezorixevakavo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7630/4544/files/kafosigufigujidi.pdf
    • https://static.usrfiles.com/ugd/f09a9d_fb828cc25330418087fda3a3429ceb4b.pdf
    • https://static.usrfiles.com/ugd/5de1df_31c77fcd713c47308c65a6571c562cfc.pdf
    • https://cdn.shopify.com/s/files/1/0431/4405/2885/files/smash_4_legal_stages.pdf
    • https://cdn.shopify.com/s/files/1/0434/4093/0968/files/gelexowi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/27898874164.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000591a.bin
0e617249ee907fb572b81d92c12203382ee064cf2497c81c267d1b0014bdc533		 pdf-font-stream PDF embedded font (sfnt) at offset 0x591A 5128 bytes
font_01_sfnt_off00006a62.bin
319037aa46f7f9d0138fcb96407dacb6b7fe3ab39dbc4d613f4f5fe9b7664cbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 10328 bytes

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