Malicious PDF — malware analysis report

Static analysis result for SHA-256 9467e29c992a35dd…

MALICIOUS

PDF

36.3 KB Created: 2020-08-04 16:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d4bd41e805cbff9db670f53d5adfd77 SHA-1: a87f455786d649111d2d0b1a6390fb61ceb40d95 SHA-256: 9467e29c992a35dd9d9536fb04e00b689fb7809c156af76a39d82ed312e082a9
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=athens+map+english+pdf, which is likely used to redirect users to further malicious content. The document body itself is heavily obfuscated and contains binary data, but the presence of the malicious redirector and the link farm heuristic strongly indicate a phishing or redirection attack.

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/pify?keyword=athens+map+english+pdf
    • http://files.ablesonvet.com/uploads/1/3/1/4/131453990/vilarakuretufo.pdf
    • http://files.linencanvaspaper.com/uploads/1/3/0/8/130874010/luwavokibumuzal.pdf
    • http://files.johnhain.com/uploads/1/3/1/8/131856365/f3521e4caf3.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/60185027527.pdf
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/82677492682.pdf
    • https://cdn.shopify.com/s/files/1/0438/6832/4005/files/81534749630.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/fibakasazotonanekakel.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/tekuwopuxakuxojutisagosav.pdf
    • https://cdn.shopify.com/s/files/1/0432/8125/2507/files/47289326572.pdf
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/9099427692.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6596/files/71155516433.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/fugidaxupijo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1462/files/45569971233.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_off00004f19.bin
78f3338d8ff5257df153870208a543368f4646e6652ab14057e6624e625bb83a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F19 5348 bytes
font_01_sfnt_off00006129.bin
82a01a5895894a6675ced9ea567e8f708d0e7180267995543c38aeee71e5c0d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6129 10456 bytes

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