Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1e8bb8f0c97b81a…

MALICIOUS

PDF

32.8 KB Created: 2020-08-29 20:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 851de0eb69c411aa39b0b5269e1574e4 SHA-1: 8f3ddc6710f4d034c428b02a8cdb5ac9b422faf9 SHA-256: b1e8bb8f0c97b81a5f8430f2f0f261af1abc2d8a49fce226f72756b896dc181e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it's a malicious redirector, pointing to 'https://ttraff.cc/wix?keyword=le+grand+guide+de+l%2527ayurveda+pdf'. This suggests the document is designed to trick users into clicking the link, likely leading to a phishing page or malware download. The PDF also contains a link farm, further supporting its role as a lure. No scripts were extracted, but the primary attack vector is the malicious URL.

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/wix?keyword=le+grand+guide+de+l%2527ayurveda+pdf
    • https://cdn.shopify.com/s/files/1/0428/9799/7991/files/linemapufeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/3653/9045/files/borderline_personality_disorder_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0438/6911/0432/files/allen_bradley_vfd_powerflex_525_user_manual.pdf
    • https://static.usrfiles.com/ugd/696b8a_3e2f67ff8b7642a792c107e73ca4621c.pdf
    • https://static.usrfiles.com/ugd/b8c837_74d288e799504b99958d9226f29c1549.pdf
    • https://static.usrfiles.com/ugd/b8c837_6520b8372fdf44ba81f2ac7eb06f700b.pdf
    • https://cdn.shopify.com/s/files/1/0433/2804/5209/files/toninirofili.pdf
    • https://cdn.shopify.com/s/files/1/0459/7127/5943/files/sales_receipt_book_template.pdf
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/kaplan_gmat_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/gw2_tequatl_timer.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/83693830423.pdf
    • https://cdn.shopify.com/s/files/1/0435/0004/4440/files/concept_of_charismatic_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0469/0336/1698/files/vikejewekesexomososobuxuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5144/9504/files/video_dndrme_program_tamindir.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_off00004275.bin
a3eb40b180c93e6165789265e4073c8aab8b17c1e911e355bafec4ca5f30486d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4275 5168 bytes
font_01_sfnt_off00005432.bin
e954ce5aaf980bc83e62ef76387b2c74da86cfd26d48f03eed1331920939355a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5432 10228 bytes

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