Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6997cfeac00af12…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 14:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4139208b2d378f860366950d93a2580 SHA-1: 13dbe5c1c1a6523276166d958ae68bbbfc11f454 SHA-256: e6997cfeac00af125de5c68dec701945f7fcd5f8fd453940b22ee6b7291c3d55
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. The document body mentions 'Whatsapp app 2019 free', suggesting a lure to trick users into clicking the malicious URL. The presence of a malicious redirector link and the SEO link farm technique indicate a phishing or social engineering attack.

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.ru/pify?keyword=whatsapp+app+2019+free
    • http://files.creesbrothersfarm.com/uploads/1/3/1/4/131408056/4506d0e66ac1.pdf
    • http://wuzax.westerndubuquefootball.com/uploads/1/3/1/3/131384771/49949.pdf
    • https://cdn.shopify.com/s/files/1/0432/6975/0940/files/very_hungry_caterpillar.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/makalah_cacing_kremi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/buzobonasamilesenuwufox.pdf
    • https://cdn.shopify.com/s/files/1/0431/7357/6865/files/react_dashboard_templates_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/cells_alive_webquest_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0436/5654/4409/files/sdl2_raspberry_pi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/26098323147.pdf
    • https://cdn.shopify.com/s/files/1/0428/9639/2348/files/javascript_sum_array.pdf
    • https://cdn.shopify.com/s/files/1/0435/3795/7023/files/panewifode.pdf
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/dobuwe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058d5.bin
0ed1a29d3654745e3fb770cad23410cb6b4286b697137187c023ffb43f46a1cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58D5 4976 bytes
font_01_sfnt_off000069d7.bin
afdc536b2c4a1be08452c7f51542a0153e7b66e2e1212cb69843750c85c4e1f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69D7 10608 bytes
font_02_sfnt_off00008e31.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E31 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.