Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce4d9a51eb04a2fb…

MALICIOUS

PDF

42.4 KB Created: 2020-09-02 03:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 684ff5ce028683cd430884469bef01ef SHA-1: addde775e65d954bccbde332b5e0d94c14c98f2e SHA-256: ce4d9a51eb04a2fb5009e5669fd5b62fc5b170543266dee281f00eb01f3d0bd2
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a document about 'change management'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm, likely for SEO manipulation or to distribute malicious content. The embedded URL points to a redirector, which is a common technique for delivering malware or phishing pages.

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=change+management+f%25C3%25BCr+dummies+pdf
    • https://static.usrfiles.com/ugd/724fb5_884d503be6314ccca19bb4afebbda1f6.pdf
    • https://static.usrfiles.com/ugd/299074_6fc189fd8e274023bc6af811f37ae96d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a79872952dd44e10930cc7275420a490.pdf
    • https://static.usrfiles.com/ugd/6290de_9ad3f8b11db545d1a924e55b6d1af595.pdf
    • https://static.usrfiles.com/ugd/a86d68_fa8b4ef5177c4552a2088ac799fb3b25.pdf
    • https://static.usrfiles.com/ugd/824332_748ca224913a4210a5d9390921ac6b26.pdf
    • https://static.usrfiles.com/ugd/3b7182_0d9f2968806d441b8d918115899f577e.pdf
    • https://static.usrfiles.com/ugd/f14cf6_0616b04ef1d74cb1b8147c30d8b4ad37.pdf
    • https://static.usrfiles.com/ugd/b8c837_a234725131204072be73204f96052323.pdf
    • https://static.usrfiles.com/ugd/9f69bd_bc7832d21f174b52b8c776d9c27bae84.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/
    • https://static.usrfiles.com/ugd/824332_74

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000639e.bin
eabed531fac4aaa13acef354c464cc5e5dcda41c3e775ffdb6495cdb27b7d627		 pdf-font-stream PDF embedded font (sfnt) at offset 0x639E 5448 bytes
font_01_sfnt_off000075c6.bin
4e45144d9ef4353c0ee80717d3bbf4dba53b099966ef05fc61f259dee9ef7a66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C6 11312 bytes

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