Malicious PDF — malware analysis report

Static analysis result for SHA-256 52faa5f01f7f6d8e…

MALICIOUS

PDF

218.0 KB Created: 2020-09-02 09:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59204d2de4a8fbc5d7a3cdf1e9d9bd6e SHA-1: c0c7acd729d611cc4319f823a984958dcf63ee5d SHA-256: 52faa5f01f7f6d8eca89552091dee0e4e656297f9c5d902743fbcb00f1985322
68 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, the document body, though heavily obfuscated, contains text that appears to be related to the embedded URL, and a low-severity heuristic indicates the presence of an urgency lure. The primary IOC is the malicious redirector URL.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/wix?keyword=android+framelayout+addview+index
    • https://static.usrfiles.com/ugd/0e9fc2_dbce0c2d21154254b548aa1713aca111.pdf
    • https://static.usrfiles.com/ugd/d5cf39_032f1d6ce9da4ccb8eb33239ba39e050.pdf
    • https://static.usrfiles.com/ugd/94e5ef_83462f95c62740f8993193717868bb4c.pdf
    • https://static.usrfiles.com/ugd/bdc04d_c8d434009b3f40d0935113d0f359526d.pdf
    • https://static.usrfiles.com/ugd/18122d_d2e1a9b86423448c8c25f5aecb7d272b.pdf
    • https://cdn.shopify.com/s/files/1/0463/1307/8949/files/95310901396.pdf
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/poveguganolizoruwa.pdf
    • https://static.usrfiles.com/ugd/b8c837_72ac00d833ba4b14b2a37e71ec36f944.pdf
    • https://static.usrfiles.com/ugd/0c4177_e007b7eed9554b0394751b38fe81c9f4.pdf
    • https://static.usrfiles.com/ugd/ff2e72_7eb258ee1c314b62bbf1fc2ce9cbd60b.pdf
    • https://static.usrfiles.com/ugd/0dd040_97a35e579c4d4743af87d31d8692bb97.pdf
    • https://static.usrfiles.com/ugd/a9e086_7ad850fae3da456788b305a7b0823fc4.pdf
    • https://static.usrfiles.com/ugd/de65f7_7e449aeec13943f7936de45d83cd322b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ede4d68659f408ab4f3a4858bdffa19.pdf
    • https://static.usrfiles.com/ugd/b8c837_988c0c7e86fa4635926f388796f04f61.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_off000316f5.bin
fe8004ebdd426d3410e58f4fe227a4e0e4c3c87365deaccd9886157c89fe9186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x316F5 5188 bytes
font_01_sfnt_off000328a5.bin
4c11b4a2f649adca1ee79a92c546aa7223a250e2754b62ba923bd8f127828a46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x328A5 15488 bytes

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