Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d9aadb93497633f…

MALICIOUS

PDF

47.9 KB Created: 2020-08-03 06:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f2aa8b012ee13f3fc0255d2c3f6958e SHA-1: 6fe4380999711f80f05b5eea1e4ed5528d1c22db SHA-256: 8d9aadb93497633f4361b26d9a41a29907da2dc41ffcab095cdab5519ade8dac
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, specifically pointing to 'https://ttraff.ru/pify?keyword=can+you+catch+the+titan+in+prodigy'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking shopify URLs, suggesting a lure to a malicious site. No scripts were extracted, but the presence of a malicious redirector indicates a likely attempt to deliver a secondary payload or phish the user.

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=can+you+catch+the+titan+in+prodigy
    • http://files.lbtbi.com/uploads/1/3/1/1/131163932/wejegaw.pdf
    • http://files.lindamitchellbooks.com/uploads/1/3/0/8/130873830/5298039.pdf
    • http://files.isleypercussion.com/uploads/1/3/1/0/131071137/lizezopevalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/99976361676.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/11037813774.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/paboridafosavofadaji.pdf
    • https://cdn.shopify.com/s/files/1/0438/4882/7040/files/77818024064.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9309/files/semezuvivexekataro.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/lufobifanifijudogexupof.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/zoxopopafi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2122/8442/files/navusekapisexilu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0575/2997/files/xafufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/72938646351.pdf
    • https://cdn.shopify.com/s/files/1/0439/0954/6136/files/luxofumati.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/tuxuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/kefuvewuradozepegoli.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/windows_movie_maker_2012_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/7361/7568/files/sirof.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_off00007e14.bin
15e55fc45477bdb1d2635f351dee1280e9b3ddec1db1bc6be9d649cb5a7224f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E14 5132 bytes
font_01_sfnt_off00008f8c.bin
bd25026c015a92bc97fab8d149886610f53df9e968403f763a961cdde30006c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F8C 10120 bytes