Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae449f22013751f…

MALICIOUS

PDF

34.8 KB Created: 2020-09-01 02:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47916a356e9a49e3c8c4c07bf0b3fd7b SHA-1: fdfcdb38f6a17e4cd1f959c9a6c96b28e218f78c SHA-256: cae449f22013751f84af8b5992f05bbb1af572d45ef06618e06fe0531ec2c5fb
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is designed to lead users to potentially harmful external sites. The embedded URL https://ttraff.ru/pify?keyword=keysight+infiniium+oscilloscopes+programmer%25E2%2580%2599+s+guide is flagged as malicious, suggesting a phishing or malware distribution attempt.

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.ru/pify?keyword=keysight+infiniium+oscilloscopes+programmer%25E2%2580%2599+s+guide
    • https://cdn.shopify.com/s/files/1/0436/5054/7870/files/66629371713.pdf
    • https://cdn.shopify.com/s/files/1/0440/5392/1957/files/78086355894.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/dozudigomumidoserike.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c5d0e8ef8cc449fb11bb7d577dc25a8.pdf
    • https://static.usrfiles.com/ugd/49be48_77147fecde0b41709f92449c4fb62f7c.pdf
    • https://static.usrfiles.com/ugd/b8c837_0f60d54d460443c2ae9fed21168741c2.pdf
    • https://static.usrfiles.com/ugd/a1fb72_7882d0f8703b49a194b7878b0652cd50.pdf
    • https://static.usrfiles.com/ugd/735424_5f4ca92a7e8e491c869c9fcc3a098c8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_41e24464f143445f9a2549e235a1821d.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/belgaum_map.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/11343622639.pdf
    • https://cdn.shopify.com/s/files/1/0438/8087/4139/files/91094773833.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/berasag.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_off000048c5.bin
e4f98776d834c9ed658f8794a6a93b4cfed21381f1a2faa33dda417bc75e8a1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48C5 5692 bytes
font_01_sfnt_off00005c17.bin
052550215c4f53eca083d9992f231644afeb79dbcdb4ed6937aedde474395029		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C17 9220 bytes

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