Malicious PDF — malware analysis report

Static analysis result for SHA-256 90db4ac5ad8303de…

MALICIOUS

PDF

36.8 KB Created: 2020-08-31 11:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bfd7fb1f863c119a55a452aac359903 SHA-1: 38fe7b292e3c933743c5f85907ee4e787b37c9d9 SHA-256: 90db4ac5ad8303de7bd859e34efb6ae2a0e566d78f1e36839af923daedc90e88
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=ace+hood+trust+the+process+2+download'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous links to other PDFs, primarily hosted on cdn.shopify.com. The document body contains obfuscated text and the malicious URL, suggesting a lure 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.cc/wix?keyword=ace+hood+trust+the+process+2+download
    • https://cdn.shopify.com/s/files/1/0457/0074/3324/files/comparing_mitosis_and_meiosis_lab_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/nufesipizeroreke.pdf
    • https://cdn.shopify.com/s/files/1/0438/3604/7525/files/susubenexulubomuj.pdf
    • https://cdn.shopify.com/s/files/1/0464/6453/2638/files/34375982535.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1801/files/xetewilevilesesijifiv.pdf
    • https://static.usrfiles.com/ugd/b7082a_ced4841701f84b8eb75c684142a14048.pdf
    • https://cdn.shopify.com/s/files/1/0428/9232/9116/files/54059429410.pdf
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/zogisosuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/1116993900.pdf
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/mainpuri_sheetla_devi_ki_katha.pdf
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/java_8_full_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/4997/4946/files/kodaso.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_off0000440c.bin
d700bdab7821cc3fc042bc76c487e4061775776966f74a5df9d2d08210f650e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x440C 5208 bytes
font_01_sfnt_off000055c1.bin
b37a3d290ada70aae91a6540cb59290e150fcf82596b38a6102096b31d017d3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C1 10164 bytes
font_02_sfnt_off00007887.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7887 4324 bytes

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