Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b8368b82bfbe99…

MALICIOUS

PDF

36.6 KB Created: 2020-08-15 07:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f6c43d2068eb99f0ef20645248a007a SHA-1: bf10454e4f83564d26b0de983b7d2666eb258d4a SHA-256: 50b8368b82bfbe9942e1e46b234f55a80a4683612ba78ac79ba2a3d0058b42a9
60 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. The document body, though heavily obfuscated, includes the same URL. This URL is likely used to redirect the user to a malicious site, potentially for further exploitation or credential harvesting. No scripts were extracted from this sample.

Heuristics 2

  • 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.
  • 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/wb?keyword=zero%20first%20and%20second%20conditional%20exercises%20with%20answers%20pdf
    • http://files.nwgachampionship.com/uploads/1/3/1/8/131856039/novofiradop.pdf
    • http://sojad.waynetownshiptrustee.com/uploads/1/3/1/6/131606122/9508350.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/kasewix.pdf
    • https://cdn.shopify.com/s/files/1/0438/2628/2658/files/atm_full_form_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/snap_circuits_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/auguste_comte_a_general_view_of_positivism.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/89505002618.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/bimupagiditigawipiw.pdf
    • https://cdn.shopify.com/s/files/1/0438/9391/5800/files/wumod.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_off00005054.bin
d91abce37acf978a3e041261909b3602a5ad1a6ea60e05b81addab0ae20bccf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5054 5360 bytes
font_01_sfnt_off0000629a.bin
c49935ddecbe7e1cdee6dc39065b86597d47e1f97a8a17fb7e7f42011e2e419c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x629A 10152 bytes

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