Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ad10bc3362b4ff…

MALICIOUS

PDF

41.2 KB Created: 2020-08-21 15:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61589a1acea83d8fe9f60f62fc7cb996 SHA-1: 0ea21e6e5b59130201d322f9f2a68ebac528f4d6 SHA-256: c2ad10bc3362b4ffa5374f838dbb7400e207a903e7523ee27d75bd65595cd798
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One prominent link, 'https://ttraff.ru/pify?keyword=alleluia+movie+free', is identified as a malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, indicating an attempt to deceive the user into clicking through to a potentially harmful site.

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=alleluia+movie+free
    • http://kowog.eileenheller.com/uploads/1/3/0/7/130775934/4608420.pdf
    • http://natuzudiv.flatrockfragrances.com/uploads/1/3/1/3/131379530/9223412.pdf
    • http://wedom.rociosspiritualbotanica.com/uploads/1/3/2/8/132816202/tubeveniwitudumoz.pdf
    • http://files.kspaceonline.com/uploads/1/3/0/7/130776661/9975033.pdf
    • https://cdn.shopify.com/s/files/1/0437/9430/1085/files/28380598581.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0562/files/objectives_of_research_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0590/files/61581354284.pdf
    • https://cdn.shopify.com/s/files/1/0434/2202/3847/files/podetonuxuzivut.pdf
    • https://cdn.shopify.com/s/files/1/0438/2267/8173/files/jogomiwegojeve.pdf
    • https://cdn.shopify.com/s/files/1/0438/4214/2358/files/728982025.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/69829489100.pdf
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/my_best_games_of_chess_alekhine_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/22680579737.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/jtr_s10_v8_conversion_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6975/7850/files/wojomidoberejawalunosi.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_off000065f3.bin
6efad4c5922f1204c7fa27593efa939e660f45e9dd87edded56c591c52031ffe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F3 4784 bytes
font_01_sfnt_off0000762f.bin
003873aab3c8caeda3d982e89cba126c0291ae649f0e74f5fc881a8e4a08a025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x762F 10016 bytes

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