Malicious PDF — malware analysis report

Static analysis result for SHA-256 824dff68a297af14…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 04:07:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8022e8f9a9be2b12a870cc41edd4deaf SHA-1: 194a40b9d944e3aafbda3b300aebbeb168946c7f SHA-256: 824dff68a297af14ec77b5df47cf5cb971c6a618aedad1d4765a1dcc828cda0d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to Shopify domains but some to potentially malicious domains. The document body, though heavily obfuscated, contains the 'liverpool bayern match report' string and the 'ttraff.com' URL, reinforcing the lure. The primary attack pattern involves redirecting users to malicious infrastructure, likely for phishing or further malware delivery.

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=liverpool+bayern+match+report
    • http://gafozoxi.luebtowj.com/uploads/1/3/1/4/131438641/d8e50d69b98096a.pdf
    • http://files.abroaddownunder.com/uploads/1/3/0/8/130874102/8031831.pdf
    • http://nogogax.autumnserenityhealing.com/uploads/1/3/1/4/131437601/7358986.pdf
    • https://cdn.shopify.com/s/files/1/0431/1787/1266/files/calcifying_epithelial_odontogenic_cyst.pdf
    • https://cdn.shopify.com/s/files/1/0434/2179/4460/files/xiwuponi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/32172306977.pdf
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/wow_bfa_warfront_gear_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/99369751197.pdf
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/memory_allocation_methods_in_os.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7308/files/57516713751.pdf
    • https://cdn.shopify.com/s/files/1/0431/5286/7477/files/cursive_letter_writing_practice_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/numpy_standard_deviation.pdf
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/57101784841.pdf
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/university_alabama_football_injury_report.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_off0000643e.bin
a67db7dab0102bf0d46a6156a211c47210417918de520d8e5ef57d36a75eae23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x643E 5240 bytes
font_01_sfnt_off000075e8.bin
c36c0459d1c15943b42c5cda63ee6b0ec7ae300a8ad82bea49b3ca3f1eaf066d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E8 10360 bytes

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