Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00642a13f2f09c0…

MALICIOUS

PDF

76.4 KB Created: 2020-08-14 11:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77b825173dddc1d2450a987725a40084 SHA-1: 7858461943ce97c815ffac01842de411e57c3785 SHA-256: c00642a13f2f09c02bcaa9b786cfd2a9537d61d952facf5dd8acc6524a59a4b3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to appear as search results, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'D g p full form' and the URL 'https://ttraff.cc/pify?keyword=d+g+p+full+form', suggesting a lure to a malicious site. The PDF also contains numerous other links to external PDFs hosted on Shopify, likely part of a link farm to manipulate search engine results.

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=d+g+p+full+form
    • http://najafupew.companychowfoodjunkies.net/uploads/1/3/1/6/131607095/6e93f211391.pdf
    • http://files.learningaboutlife.net/uploads/1/3/1/8/131856352/87d88f52.pdf
    • http://files.ssanthonyphilip.com/uploads/1/3/0/9/130969404/6123421.pdf
    • https://cdn.shopify.com/s/files/1/0435/8710/9023/files/http_www_to_word_converter_net.pdf
    • https://cdn.shopify.com/s/files/1/0438/7821/9944/files/63491933508.pdf
    • https://cdn.shopify.com/s/files/1/0432/8144/9118/files/29766986426.pdf
    • https://cdn.shopify.com/s/files/1/0439/2471/7723/files/kizugijejedodakivi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/canon_750d_specs.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/19166538102.pdf
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/literature_essay_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/xejegovasosorenovivepurup.pdf
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/24694008253.pdf
    • https://cdn.shopify.com/s/files/1/0435/5109/6991/files/bertrand_russell.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/dogonikuweruralujo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0f2.bin
1875b4d7859057c3924bcd43f843efe6e62afdde48fbc858e6eb5113a46c9424		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F2 4360 bytes
font_01_sfnt_off0000cfc5.bin
dba1e9c3dd7efc0107ba2715c9370ca4e897843b5212f9dda985120886c1ee04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC5 13880 bytes
font_02_sfnt_off0000fb48.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB48 4324 bytes
font_03_sfnt_off00010949.bin
e067a79a6b0dbee68b6ef24fc2f143646de02ebd00b0be69e88d3d61ff1e38bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10949 7876 bytes

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