Malicious PDF — malware analysis report

Static analysis result for SHA-256 910c548edf523dd8…

MALICIOUS

PDF

44.0 KB Created: 2020-08-05 12:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c831419a2402fd72ea29c6e6cfde61a SHA-1: 38aa2156effdf0088dea6d97802703e3cd175835 SHA-256: 910c548edf523dd89848f5d689efbefa68830fbc4324820deafc3a1470b15ab7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=uncitral+model+law+on+international+commercial+arbitration+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an attempt to manipulate search engine results or distribute links across multiple benign-looking documents. No scripts were extracted from this sample.

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/pify?keyword=uncitral+model+law+on+international+commercial+arbitration+pdf
    • http://files.lovehealthwealthself.com/uploads/1/3/1/8/131856672/ef5128.pdf
    • http://files.xminimumy.com/uploads/1/3/1/4/131437044/5213490.pdf
    • http://lemofe.2wolvesinc.com/uploads/1/3/0/8/130874524/janufise-vituwixad-fidiloli-zivefunog.pdf
    • http://files.northernmarineinc.com/uploads/1/3/1/4/131437987/nuregeg.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/negevevumuliwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/zujikul.pdf
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/58017354681.pdf
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/21128654009.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/paradise_lost_book_9.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/19169751426.pdf
    • https://cdn.shopify.com/s/files/1/0439/5322/5886/files/tifevo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.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_off00006b55.bin
e47eb03be2cc2f2c05235cf60ac1a69df3e255113c6bd199176284d2c16ee512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B55 5348 bytes
font_01_sfnt_off00007d7f.bin
a0be948bc46e0c45d4c635b300072a95534d27c243ac34c39454ec9bd1a94dd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7F 10844 bytes

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