Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d44fccbd10d381…

MALICIOUS

PDF

61.3 KB Created: 2020-08-29 00:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f7907c1127a4dba3afde1525461a599 SHA-1: f1ce15d35dff8d944a94a8f078456458b7b91998 SHA-256: 46d44fccbd10d381f9076a2b509f01b69f76240c87dcdcd3a00203494d9704a0
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this. The document body, though heavily obfuscated, contains the same URL, suggesting a phishing or scam attempt. The presence of a link farm heuristic indicates a broader attempt to distribute malicious links.

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.ru/wix?keyword=brieporto+schweiz+nach+deutschland
    • https://cdn.shopify.com/s/files/1/0437/3273/0017/files/iobit_uninstaller_8._6_key.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/akbar_birbal_natak.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0494/files/jakikanokadab.pdf
    • https://cdn.shopify.com/s/files/1/0462/6520/4893/files/being_mary_jane_season_5_movie.pdf
    • https://static.usrfiles.com/ugd/b8c837_71baf34b07de4a609da323efc26e6da5.pdf
    • https://static.usrfiles.com/ugd/b8c837_42f181e00a294d89978bc9d24152c657.pdf
    • https://static.usrfiles.com/ugd/b8c837_681f2cc7fc5c4ddc8bff164975e67588.pdf
    • https://static.usrfiles.com/ugd/b8c837_165909e2bd984fe8a5d4d9948cac662a.pdf
    • https://static.usrfiles.com/ugd/b8c837_dab5dad5c154444baac3490c4848d38d.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5d72d8fb86b42059382dd488905e9a3.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_off0000ae78.bin
9983d608383523cb95b358c0cca83c35dbe3c4a04b0d713b315e63b2994bba3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE78 5352 bytes
font_01_sfnt_off0000c0bd.bin
5e9376e2b1a594de94eee9245ea9bc25b4720f42a5cad12a48639bb485eea111		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0BD 12332 bytes

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