Malicious PDF — malware analysis report

Static analysis result for SHA-256 94732407f34aafce…

MALICIOUS

PDF

57.0 KB Created: 2020-08-19 13:30:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fff59fe66809adf5b4d3191654e12df7 SHA-1: ca71074f51aa73192cf230eb2d18a6055c11acbc SHA-256: 94732407f34aafce12245d90b60f579e986739130b56d36e87db5361db1f9d4f
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.cc/pify?keyword=hyderabadi+miya+bhai+rap+song'. This URL is likely used to redirect the user to a malicious site. The document also contains a link farm heuristic, indicating a large number of external links, with 'https://cdn.shopify.com/s/files/1/0432/7555/0876/files/nupevukibos.pdf' being the first identified. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF link, suggesting a lure to a malicious site.

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=hyderabadi+miya+bhai+rap+song
    • http://files.communityspanish.com/uploads/1/3/0/7/130739177/3906697.pdf
    • http://files.cidangelcarpetcleaning.com/uploads/1/3/2/7/132740399/filidavosatujok.pdf
    • http://files.cachor.org/uploads/1/3/0/7/130775174/4517255.pdf
    • http://gividab.scaturchio.info/uploads/1/3/1/3/131381497/990dd745.pdf
    • https://cdn.shopify.com/s/files/1/0432/7555/0876/files/nupevukibos.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/39643756356.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/todexarim.pdf
    • https://cdn.shopify.com/s/files/1/0438/5076/0357/files/ms_word_trial_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/34318558171.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdf
    • https://cdn.shopify.com/s/files/1/0441/1123/3176/files/annual_report_bca_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7529/files/zigulive.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007573.bin
200dd1c2a22e9ef697d76f3f9073c075e2db30d1cb2f839237100747b8714c81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7573 5544 bytes
font_01_sfnt_off00008825.bin
583dc75a33041d3f0097fb6c60e2d2ef5605da6cd545a58eeac2d11dca07a664		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8825 15324 bytes
font_02_sfnt_off0000b771.bin
f4b0167d4a9ef3becea50536c1bf252aa24fdbce51bb1683c1226151a9123f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB771 10084 bytes

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