Malicious PDF — malware analysis report

Static analysis result for SHA-256 e769f14bd5a526dd…

MALICIOUS

PDF

106.6 KB Created: 2020-08-21 07:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68002a308b597dfc7683d69af33ab37e SHA-1: e7d8cbbbb59798042097a2a25aedad17344e0a56 SHA-256: e769f14bd5a526dd561e1bd94b41f4f712a72b3e2f04e867f92406d7b0a5fcb3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, a technique often used for SEO poisoning or to obscure malicious links. One critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/pify?keyword=bonetrousle+holder+remix, indicating an attempt to lead the user to a harmful destination. The document body contains garbled text but also includes the redirector URL and several Shopify URLs, reinforcing the link farm observation.

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.cc/pify?keyword=bonetrousle+holder+remix
    • http://files.sleepeasydentistry.com/uploads/1/3/0/8/130874543/5616551.pdf
    • https://cdn.shopify.com/s/files/1/0432/4327/4402/files/css_diner_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/0982/7231/files/wowuzosuzivuvaxunetaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/2028/8153/files/55406555025.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/70816761630.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/tarosa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/pomobidirolab.pdf
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/13206957066.pdf
    • https://cdn.shopify.com/s/files/1/0440/5847/6694/files/the_walking_dead_comic.pdf
    • https://cdn.shopify.com/s/files/1/0432/0064/3236/files/48918396306.pdf
    • https://cdn.shopify.com/s/files/1/0433/4940/9960/files/sasipipofiz.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c18f.bin
432eba6ffb317ba440d27c8877c8033efef6b466327c9e2bd4727a76e57d5284		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC18F 29836 bytes
font_01_sfnt_off00011ed9.bin
1a911b0c196e6fef6beb720d034d89b6092fc9adf2feb522a2392f321efd3d31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED9 4856 bytes
font_02_sfnt_off00012f27.bin
5143e18629118231c15049bf38facf3b816fa8cd0b4fa546eef57139595908ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F27 1704 bytes
font_03_sfnt_off000137e9.bin
5b99b59262d54483261657db6ce9b669091c043dd629ca0a4959c269052bb2c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x137E9 21228 bytes
font_04_sfnt_off0001739f.bin
63aa4f673ced2d4e6b3499fa805f05c88c32033f44f49f35fcb7a96677570323		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1739F 17388 bytes
font_05_sfnt_off00018d0d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D0D 4324 bytes

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