Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7936b8bd88bd235…

MALICIOUS

PDF

41.9 KB Created: 2020-08-31 07:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9088b016e2313d206d036ba2adb59470 SHA-1: a36cfa206f1121cbcb40ae8803b688ebcf44c00f SHA-256: f7936b8bd88bd235cb78771c748edda74f20a0af649dc9a35cf88d935650324b
120 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the attack. The document also features a large number of embedded links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to improve search engine ranking and visibility. The embedded URL in the document body, 'https://ttraff.com/wix?keyword=p320+guide+rod', is the primary indicator of malicious intent.

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/wix?keyword=p320+guide+rod
    • https://cdn.shopify.com/s/files/1/0428/2197/6220/files/paper_bag_template_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/dikesonuzodo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/nenogorositomi.pdf
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/59466839335.pdf
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/ladom.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6480/files/81794084809.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5225/files/annexure_for_mba_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/8660/2659/files/python_significant_digits.pdf
    • https://static.usrfiles.com/ugd/29c71c_4bb57315ea6b45a284eea8fc6cc2d5b3.pdf
    • https://static.usrfiles.com/ugd/e1d12c_15dd2a7967304ce5a28ba0f7119a1d5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d9b425baf1243dd93c83e8519b2fd3a.pdf
    • https://static.usrfiles.com/ugd/b8c837_92cdfbb591ec40b4a1bec773594c42cf.pdf
    • https://static.usrfiles.com/ugd/4dd980_af93e532ea6046e8be261d94044798fa.pdf
    • https://static.usrfiles.com/ugd/0049ca_e7f7b2615815464ea8a7dfb4b2be32ab.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_off000059a2.bin
c660ac0297ae7898557d03750cc3f7cbebf3989abb0b5b4ebb0c3ccfeb84ceec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59A2 4708 bytes
font_01_sfnt_off000069a2.bin
e3d83368ec0ac92b1a11062486c263ca8c9d95ad3589649ff37066727cd7f665		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A2 10036 bytes
font_02_sfnt_off00008bfd.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFD 4324 bytes

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