Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc9e5b65bae7b65…

MALICIOUS

PDF

47.7 KB Created: 2020-08-27 15:09:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8715eed04632cf5feeae6f1e5fafdcd6 SHA-1: 3d8627bb27fa7229ec0507601476f268cc8765c9 SHA-256: 1bc9e5b65bae7b65a71826dd701ef377ed95e3596bf4a3ec9b185e21b8c9fc77
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a product review and the malicious URL, suggesting a lure to a scam or phishing site. The primary attack vector appears to be social engineering via a malicious link within the PDF.

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.com/pify?keyword=gnc+ripped+vitapak+review
    • http://kiwez.got-a-man.com/uploads/1/3/2/7/132740763/gususijagijaxig.pdf
    • http://jubukexu.gracebecker.org/uploads/1/3/2/6/132683138/3248077.pdf
    • http://jenaz.briancatucciomusic.com/uploads/1/3/0/7/130776672/vatujoxijosekamojoxu.pdf
    • http://files.sbcusd-career-pathways.com/uploads/1/3/0/8/130874058/simubewefuji-sexanere-vumaroti.pdf
    • https://cdn.shopify.com/s/files/1/0434/3185/4247/files/suxegod.pdf
    • https://cdn.shopify.com/s/files/1/0433/7061/0851/files/pexovidulebiwar.pdf
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/xatonozo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/chess_book_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7641/files/tonimavapesexozapola.pdf
    • https://cdn.shopify.com/s/files/1/0428/9927/5935/files/47246103588.pdf
    • https://cdn.shopify.com/s/files/1/0440/3465/4358/files/cabling_network.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/pijavatanekilodug.pdf
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/63699063829.pdf
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/12410237692.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/suvowewuxaziwologososena.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_off00007c87.bin
8411275a4f9402ef0453c416018286cb091dc5e994bb2ea2fea881eca2c7e315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C87 5104 bytes
font_01_sfnt_off00008e0a.bin
6cc8bec74954516c859b6b9a549fc14b42c9ad87f1a805cc74481c4aa77a0373		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0A 10524 bytes

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