Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0bf65c56f1024c…

MALICIOUS

PDF

43.5 KB Created: 2020-09-02 23:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a6ee85a87a98bbc3643e754639f2f1c3 SHA-1: 3911311214d7d9ab7b9a2290a0304f8a51467a2c SHA-256: 3e0bf65c56f1024c1769ac0951131c9ca81cc5888e98d447b3f9dd1b4fa4a712
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to a malicious URL. The document body, though obfuscated, contains the same malicious URL. This indicates the PDF is designed to redirect users to a potentially harmful website, likely for phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=b+t+c+full+form+in+english
    • https://static.usrfiles.com/ugd/a86d68_fd85e85e1363469ba908ca0c906577f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b7ea52f661440188443e6796643502e.pdf
    • https://static.usrfiles.com/ugd/c8a981_02d14ba10ecb4162ad03149af386071c.pdf
    • https://static.usrfiles.com/ugd/e02969_93f38ca6d8464a9c8727c0550c65fdbf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/40118810089.pdf
    • https://static.usrfiles.com/ugd/764aaa_f2922206ca9f430bb8c93293c2cb9391.pdf
    • https://static.usrfiles.com/ugd/516793_58639f7ee7b64cbfae1891c5c0621b93.pdf
    • https://static.usrfiles.com/ugd/784815_611c886796274d53a9fc7b89722c45d7.pdf
    • https://cdn.shopify.com/s/files/1/0450/3722/4094/files/kabbalah_angels.pdf
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/how_to_start_steam_in_offline_mode.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/94162549896.pdf
    • https://cdn.shopify.com/s/files/1/0437/7001/9998/files/47661822917.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/47087223475.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_off000055ba.bin
185129207efcc594ee8a6870e5c31e91d6338ffbb36c7c1676e3854dad194777		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BA 5016 bytes
font_01_sfnt_off0000669c.bin
cb61af1f2ea58b878f8d386e797212b08adae7548b70269147a0fa6a1fac3634		 pdf-font-stream PDF embedded font (sfnt) at offset 0x669C 14184 bytes
font_02_sfnt_off00009349.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9349 4324 bytes

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