Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe67148d68140e8…

MALICIOUS

PDF

39.3 KB Created: 2020-08-03 09:07:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7474f75f0e8d599c6fb4844d0f66c8fb SHA-1: 8b678a0ae05ba0d3f05d2bfa1094078cb3ac7914 SHA-256: 9fe67148d68140e8997a3c1c0feb9bb3a9c129eec5888d8c14aa0cc2083a27be
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=by+the+great+horn+spoon+pdf+download`. The document body also contains this URL and numerous other links hosted on `cdn.shopify.com`, suggesting a link farm or redirection strategy. The primary malicious URL is likely intended to lead the user to a phishing or malware download site.

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=by+the+great+horn+spoon+pdf+download
    • http://files.parketvloerenschuren.be/uploads/1/3/0/8/130814397/7653471.pdf
    • http://files.happyhazelnut.com/uploads/1/3/0/7/130740522/femixituboz.pdf
    • http://files.backyonderfarms.com/uploads/1/3/1/1/131164313/dalijomopobik.pdf
    • https://cdn.shopify.com/s/files/1/0436/1669/8526/files/xapaxuxopinawaxok.pdf
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/juzedowiwadef.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5033/files/39905562093.pdf
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/48681999824.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/lifop.pdf
    • https://cdn.shopify.com/s/files/1/0431/2236/0481/files/fixemofe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97503793953.pdf
    • https://cdn.shopify.com/s/files/1/0439/4919/5419/files/aisc_manual_of_steel_construction.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/woguraratufaweragidokama.pdf
    • https://cdn.shopify.com/s/files/1/0432/2181/1364/files/pebijozogudikosefelepe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3621/files/pefunurafexokomumuzolale.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_off0000465d.bin
e61b4eb0c8a9e8f85b7dc8116501c2a955896c8eb28328c29a3badc7f9fdd5b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x465D 5544 bytes
font_01_sfnt_off00005950.bin
72b06359169b87570de7a80da34a7b6586ff7bfee0f00e18871fbf5194fa3878		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5950 9860 bytes
font_02_sfnt_off00007b38.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B38 16092 bytes

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