Malicious PDF — malware analysis report

Static analysis result for SHA-256 79035ff54619ccaa…

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 17:54:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66310e4d8a29877ec42f5c7207106523 SHA-1: cae7dff25a2de5ba505e48d5f8f8a9fd3d2f289a SHA-256: 79035ff54619ccaa09e114db94b9eeaaf678ac5eede59640c1a5100ee093e2ea
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.ru/pify?keyword=far+cry+5+trophy+guide', is designed to lure users under the guise of a game guide, likely leading to further malicious content. The document body, though heavily obfuscated, contains this URL and other embedded links pointing to various PDF files, suggesting a link farm or redirection strategy.

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=far+cry+5+trophy+guide
    • http://xikinopi.call-kami.com/uploads/1/3/0/8/130874523/2fc6ee7.pdf
    • http://zeduvof.xclusivelashesllc.com/uploads/1/3/0/7/130775318/9679680.pdf
    • http://files.luckystrikeii.com/uploads/1/3/1/4/131438282/gakofovib_zezavidawu_gutuze_ruvevopofa.pdf
    • http://walip.rachelsilvert.com/uploads/1/3/1/0/131070306/gagige_jodebazunivopa_jipatideboto.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/57301739959.pdf
    • https://cdn.shopify.com/s/files/1/0432/2410/5121/files/ib_extended_essay_outline_template.pdf
    • https://cdn.shopify.com/s/files/1/0464/5578/3592/files/pradhan_mantri_awas_yojana_surat_2019_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/pisomekufililetulomavewo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0822/0574/files/61311592921.pdf
    • https://cdn.shopify.com/s/files/1/0429/1313/6799/files/wopiganufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/mafofuvopizev.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/lewajiwezatujexefew.pdf
    • https://cdn.shopify.com/s/files/1/0462/0058/6398/files/web_design_templates_html5_css3.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3834/files/gapoxi.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_off00006b2d.bin
b8bf4766d2d872f4329e617d61cea8834025facea29b4c52b361c33af8f0fac5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2D 5304 bytes
font_01_sfnt_off00007d36.bin
34b3af646cd429472fabc8349860156bc996c36b31f0901d7310d1b36e1292ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D36 10292 bytes

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