Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f0e1e5cdbd4d06…

MALICIOUS

PDF

48.3 KB Created: 2020-08-31 02:30:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68436d79a85b35a018f7b34399315777 SHA-1: 42873b943f4190cca7ee963a157956c19322dc37 SHA-256: d2f0e1e5cdbd4d06ba566ee27df2e83de5802c02f7abf48072e022a8dfa68c84
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL identified is https://ttraff.cc/wix?keyword=ape+escape+3+ps4, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure. The presence of numerous links to static.usrfiles.com indicates a link farm strategy to improve search engine visibility for the malicious content.

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/wix?keyword=ape+escape+3+ps4
    • https://static.usrfiles.com/ugd/ad2ade_73ebae154a664e8fbfb2990a12cca405.pdf
    • https://static.usrfiles.com/ugd/79e0dc_d831c98720d44ad68ee81020e4c5f65a.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7721a74e7c04820b2f17953fdbb5f10.pdf
    • https://static.usrfiles.com/ugd/3b7182_f317e745af0b420992018c176af0dc7b.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d9ce046bb1b4786b637b46bb18b8f29.pdf
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/tegevuvizowon.pdf
    • https://cdn.shopify.com/s/files/1/0448/3586/4736/files/45598164098.pdf
    • https://cdn.shopify.com/s/files/1/0435/9444/9055/files/english_arabic_dictionary_apk.pdf
    • https://static.usrfiles.com/ugd/f7fbc8_2ea7c739eec84c93b0e6878e4746817d.pdf
    • https://static.usrfiles.com/ugd/b8c837_ceb9385c38a94f67ae156edaa31c7a55.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_43e4a3a3e69b489c8f1c556157b4d7c1.pdf
    • https://static.usrfiles.com/ugd/ade4e6_e0b539c75c6f47e3ba5179daa9c7984b.pdf
    • https://static.usrfiles.com/ugd/bb13a2_df19989dd08d4dbfb787dccc868e65b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_0399333a34a74fe2886e000b8b12b952.pdf
    • https://static.usrfiles.com/ugd/b8c837_46dc87ecc9b048e3a764ab1bcb320ec0.pdf
    • https://static.usrfiles.com/ugd/b8c837_49215ce896c84ea9bc3c71259407e086.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/
    • https://static.usrfiles.com/ugd/ad2ade_73ebae154a664e8fbf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e27.bin
03e4ebc799bc6b072eb42d412910ba293e139fbc721f16e680d2d2f6de021d48
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E27 5064 bytes
font_01_sfnt_off00007fbe.bin
9c05c3f8347b54ad3f92585c8826b8cdb452714a6e42cad569fe1a7fa03fd87d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBE 5040 bytes
font_02_sfnt_off000090fb.bin
1e07fad8eb1b988376fd5efda2d2ee7c531099f4447f20d559d266fc87185aa2
pdf-font-stream PDF embedded font (sfnt) at offset 0x90FB 10300 bytes