Malicious PDF — malware analysis report

Static analysis result for SHA-256 bedc4b51500dc8ec…

MALICIOUS

PDF

40.1 KB Created: 2020-08-02 00:49:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 517e77b768231921f7276706cd3a284a SHA-1: 2f59262415385e3e31537873cc7d5eb56c8a4216 SHA-256: bedc4b51500dc8ecb632a44e32f7dfec943d7e25c8d9de407d30b31303ffc132
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=it-+201+2017', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links hosted on Shopify, suggesting a lure to external content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=it-+201+2017
    • http://files.fanaticalyankeenfldraftscoutingreports.com/uploads/1/3/2/7/132740804/piluwi.pdf
    • http://files.thenafd.com/uploads/1/3/1/6/131637308/melijeborite.pdf
    • http://files.taffycorbettdesign.com/uploads/1/3/2/8/132815960/1d2acd6.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/14190331231.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/lusapekonisuvuwezuzibediw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/madoribonigiride.pdf
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/zokojibinarulogakujejif.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/88339290402.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/curso_economia_politica_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/56648957042.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/jenunupukojexozazezited.pdf
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/natevibepoxubijixefuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1298/files/1311923012.pdf
    • https://cdn.shopify.com/s/files/1/0445/6860/8927/files/cc_dumps_track_1_2.pdf
    • https://cdn.shopify.com/s/files/1/0432/5507/0880/files/59230882438.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_off00005fcb.bin
e86ab9d3d51d71f360f6a7743efeb762bdd3288a4232f189e7183e51f4a0a86e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 4536 bytes
font_01_sfnt_off00006f64.bin
c720e2360d129db0b4be56ea79b1d89c95f04df061796b201ea7dcebff0dc888		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F64 10676 bytes

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