Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bd60ac144f6942…

MALICIOUS

PDF

50.6 KB Created: 2020-08-26 08:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68836afde815a39f3bd3d1d7abfe52f5 SHA-1: 2b6fcabbe738ba194481f41865675859b78af494 SHA-256: f2bd60ac144f6942d82871ff1d69e4ecd2b50b309fd37a94ae9e459e838c7f8f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=atlanta%252C+georgia+Postleitzahl+buckhe', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the document's purpose is to lure users to malicious sites through a large collection of 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.cc/pify?keyword=atlanta%252C+georgia+Postleitzahl+buckhe
    • http://files.visitwhc.org/uploads/1/3/1/3/131381612/a8335a.pdf
    • http://kafoxox.baytutoringnz.com/uploads/1/3/1/4/131453336/5061076.pdf
    • http://files.hollenbecksclass.com/uploads/1/3/1/6/131606674/remotovexesukulabef.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0659/files/74007764529.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/81757445826.pdf
    • https://cdn.shopify.com/s/files/1/0437/2119/5669/files/lolaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/3020459744.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/the_marshall_mathers_lp_zip.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/jepakinogasaze.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/6314481370.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_off000086e1.bin
1e8200f728d950b83bb082b6957b49bcc55552ec02b663c36a42a89c7bf107db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86E1 5456 bytes
font_01_sfnt_off0000997c.bin
bcf93b509010a6a26ff0a1f2b8a215c2da22eca878a0a52478cf661ba1242d7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x997C 10988 bytes

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