Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc60cbd2cb184bb…

MALICIOUS

PDF

44.7 KB Created: 2020-09-01 14:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 487a14beb83f8a142fe20d61cd952e01 SHA-1: 324b2a31081947f13c5830b61371109807900ec7 SHA-256: 9cc60cbd2cb184bb728bbf4a1e159af16e651a29ca96508ac61ee7e52adddec1
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=asus+x008da+flash+file++google+drive'. This indicates an attempt to lure the user to a malicious site. Additionally, the document body contains numerous embedded URLs, many of which are part of a link farm, suggesting SEO manipulation for traffic redirection. The presence of a callback phishing lure further supports the malicious intent.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=asus+x008da+flash+file++google+drive
    • https://static.usrfiles.com/ugd/d5d855_37e14632e28742e9b611f77c76c08fcb.pdf
    • https://static.usrfiles.com/ugd/b8c837_74b57338578845ef8460befcdf8554ad.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_49e9c1b7bf524454a1f30f1de55be35b.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/sukugepuxewokebogoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/91453887227.pdf
    • https://cdn.shopify.com/s/files/1/0435/5666/7551/files/fafel.pdf
    • https://static.usrfiles.com/ugd/b8c837_47f35fcd6ee5486788267e9a4d4a76c7.pdf
    • https://static.usrfiles.com/ugd/16a96a_4efc0c06deb14396a6f7aa5aba487252.pdf
    • https://static.usrfiles.com/ugd/b8c837_5a03222cadb146c1a43d296296f3e47a.pdf
    • https://static.usrfiles.com/ugd/1e32c2_21d513da6c4046b1850ea470f1ea5035.pdf
    • https://static.usrfiles.com/ugd/5bb01c_97885e4487484a19b2fb64485e5bf447.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_15662c37ff474e95ad443cd9d3078303.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_off000062d1.bin
27f36298443f2d9be1ace881019695f76bb35ba42a4f985cc46d6031bb7f88e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 5624 bytes
font_01_sfnt_off000075f7.bin
d75e96fb53fb26ea3d5501362d12aa2f0eee390dc7b2fdbf4ce098d349019a64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75F7 15608 bytes

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