Malicious PDF — malware analysis report

Static analysis result for SHA-256 bceced616e7c3459…

MALICIOUS

PDF

49.9 KB Created: 2020-09-03 00:56:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e94fbe651e00f1d4776d2b398ca70e9 SHA-1: df38fa4ec4de95f4f1504aaa5cd15fa92fb2265d SHA-256: bceced616e7c3459ad6c7354ccdf45fa114e58f1df5318ba195442471a0cf51b
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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, likely to obscure the malicious destination. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of a phishing attempt.

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.com/wix?keyword=heat+of+formation+of+mgo+lab+report
    • https://static.usrfiles.com/ugd/b8c837_c692caf4a0a64d8ca1ba09c60602eacc.pdf
    • https://static.usrfiles.com/ugd/8ba634_f7c9f50dd478485ab0c17358e86d5e75.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d6deec0ed734868ab6adadb3c7a2167.pdf
    • https://static.usrfiles.com/ugd/87a178_e48dc58f1a194a949011a46e582fc7d8.pdf
    • https://static.usrfiles.com/ugd/4d935e_ace881226e3b43d5ada482148cd28c8b.pdf
    • https://cdn.shopify.com/s/files/1/0439/0970/9976/files/braven_600_bluetooth_speaker_manual.pdf
    • https://cdn.shopify.com/s/files/1/0461/9334/4670/files/solicited_application_letter.pdf
    • https://cdn.shopify.com/s/files/1/0436/6611/2662/files/pelukizovusoviz.pdf
    • https://static.usrfiles.com/ugd/d01287_361bc2503604413197ea7dc0fae34ced.pdf
    • https://static.usrfiles.com/ugd/b8c837_79014978337143ef8aa256f3ebac420b.pdf
    • https://static.usrfiles.com/ugd/7c3584_f3598bcbb10b48d28e61b627689c56e4.pdf
    • https://static.usrfiles.com/ugd/f95141_6fe17564ca534528ac275c3d0d21c2b0.pdf
    • https://static.usrfiles.com/ugd/dcfb95_b928ca392c304d35bd426e7e94269359.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_off0000712c.bin
128f3f063b3fb75628be58646192a0a0e2c094d6062aa1545dabd3b3222cd10e
pdf-font-stream PDF embedded font (sfnt) at offset 0x712C 5144 bytes
font_01_sfnt_off0000829a.bin
2c28f93cf405b4fc40c43a6ce331263c6901e6b3b3f61ab86cca33baae9f4933
pdf-font-stream PDF embedded font (sfnt) at offset 0x829A 10168 bytes
font_02_sfnt_off0000a591.bin
8d0ca5441952925faa6f68d28470995fcd5e3edd800b1977fac83179433ae1db
pdf-font-stream PDF embedded font (sfnt) at offset 0xA591 16136 bytes