Malicious PDF — malware analysis report

Static analysis result for SHA-256 4176f8926eea096a…

MALICIOUS

PDF

39.8 KB Created: 2020-08-25 00:15:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47333de75f9800a4763aab1d1aec6665 SHA-1: 9939b214c359c454d7e998dae69f497be879221e SHA-256: 4176f8926eea096aed50dc054d6d17b9af0dc7fdea3ce5569beb466bf0d9d994
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=outlook+mail++for+windows+10'. This URL is designed to lure users by impersonating an email notification. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content. 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=outlook+mail++for+windows+10
    • http://files.higher-learners.com/uploads/1/3/1/4/131453998/5968528.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/xegofisola.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/vofelajutotametos.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/39520614184.pdf
    • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/65772182999.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3363/files/libram_of_constitution_wow_classic.pdf
    • https://cdn.shopify.com/s/files/1/0437/0703/9897/files/66323327662.pdf
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/39626723619.pdf
    • https://cdn.shopify.com/s/files/1/0433/6677/6991/files/tirupafebefigekejazo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/49113653079.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_off00005cb4.bin
fad905bae53d23721be76e6358f7f1d6c245580836d8711a35145cd72b5c51a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB4 5428 bytes
font_01_sfnt_off00006f2a.bin
5d15086f9a88af1efeca05aef18d6c2d5480d52e7e8b3403c7f6ae4168be1c42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2A 10492 bytes

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