Malicious PDF — malware analysis report

Static analysis result for SHA-256 927e01be5e9d2af7…

MALICIOUS

PDF

46.1 KB Created: 2020-08-25 11:22:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57230801575b359b56d20c8028ef9a46 SHA-1: f0c3b9ebddc68b98acdc06052cca43294522aaa8 SHA-256: 927e01be5e9d2af76d500f1cf3fb9c8173d9b8b50a505acb8a785952b3bdf20f
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify URLs, but one critical link to 'https://ttraff.cc/pify?keyword=live+wallpaper+for+android+9' which is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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=live+wallpaper+for+android+9
    • http://files.flickcitydesign.com/uploads/1/3/0/9/130968958/2b9cb59e7c7dfa.pdf
    • http://wowukobuz.mshaileyswebspace.com/uploads/1/3/2/7/132711947/8730675.pdf
    • http://files.aqua-ohm.com/uploads/1/3/2/6/132696280/xegewinenotumatojef.pdf
    • http://files.waltshotrodshop.com/uploads/1/3/1/4/131453348/1867429.pdf
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/ashampoo_burning_studio_18_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5042/5753/files/english_writing_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/2594/8072/files/the_nullification_crisis_student_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0432/9465/4632/files/1195070440.pdf
    • https://cdn.shopify.com/s/files/1/0436/4887/6702/files/32617625928.pdf
    • https://cdn.shopify.com/s/files/1/0440/5365/9798/files/97801136831.pdf
    • https://cdn.shopify.com/s/files/1/0431/5421/0980/files/convert_to_png_candy.pdf
    • https://cdn.shopify.com/s/files/1/0452/1410/5760/files/51832565819.pdf
    • https://cdn.shopify.com/s/files/1/0457/0349/5836/files/verb_exercises_with_answers_for_class_5.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/dire_maul_east_map.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lagikemirulufuwetore.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_off0000781e.bin
6d275d1261be48d1d2b2aea1f0c1472eaf1c7def390e438c256785d34b5c3dfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x781E 5104 bytes
font_01_sfnt_off000089ab.bin
196008c5eb518164f184a11fba05fe083e02d6c4133291b39f547c7eb1bb82e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89AB 10052 bytes

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