Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b16ef99c2420c55…

MALICIOUS

PDF

41.5 KB Created: 2020-08-27 13:07:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8156ded44faac561a8a61656050ecb41 SHA-1: ceebd3b040d81422fdd0a6cfab4d1cec8b85aa48 SHA-256: 2b16ef99c2420c556fc21053cc17d5dcc1cb45c2a368d8cdace4b737000e93c9
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=sony+vegas+13+serial+number'. This URL is likely used for phishing or to distribute further malware. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted from this sample.

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.ru/pify?keyword=sony+vegas+13+serial+number
    • http://files.garagedoorsinbristol.co.uk/uploads/1/3/1/4/131410234/a0cebb801f.pdf
    • http://wunekume.browneyedbabsknits.com/uploads/1/3/1/6/131606552/suxivapuzutegu_gaxanebaj_tomulifezaw.pdf
    • http://files.jsquaredfood.com/uploads/1/3/1/4/131411688/2565022.pdf
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/62489890706.pdf
    • https://cdn.shopify.com/s/files/1/0431/1993/5655/files/bilije.pdf
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/revuwotewimamakogade.pdf
    • https://cdn.shopify.com/s/files/1/0432/4445/4051/files/frostgrave_wizard_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/74065614689.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/94094251952.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/jegebavipobolemozig.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/17410709575.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/38158325100.pdf
    • https://cdn.shopify.com/s/files/1/0436/4887/6702/files/95719855605.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_off000063ac.bin
eca27c5fe890bdd4909e530056457a8d5f34f3b9dd2fb7614b53791956d240a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 5624 bytes
font_01_sfnt_off000076cf.bin
6273138771fb74462e9571f2462863973db688f25789420b7015cd62b676cd0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76CF 10280 bytes

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