Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9fa014a56f08e2…

MALICIOUS

PDF

39.7 KB Created: 2020-09-14 00:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a1021a3b9e67dbe2f5595817f77da75 SHA-1: 2d6b33629ce82eb3917f961eda5eb3c7fafd430e SHA-256: fc9fa014a56f08e28a6e5f787fa8e158faccc4ed8e1e495ded190de98c4d14be
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of a link farm further suggests an attempt to distribute malicious content or conduct phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.me/pify?keyword=dragon+ball+z+devolution+all+games+for+you
    • http://papizutul.iglesiabautistalasflores.org/uploads/1/3/2/6/132682327/3717544.pdf
    • https://static.usrfiles.com/ugd/b8c837_47e4f217def14a49a6bad2a3b6129161.pdf
    • https://static.usrfiles.com/ugd/50988c_729ff5b93ce240419e1809dc29a33176.pdf
    • https://static.usrfiles.com/ugd/5e81b9_aacba43cccd84c97bd7a856bd369e92c.pdf
    • https://static.usrfiles.com/ugd/b8c837_c80ee8a3e0794a46ba419dc5005401bc.pdf
    • https://static.usrfiles.com/ugd/33a2e4_2c404f80b5424d2d8b4f3144fa92fe8b.pdf
    • https://static.usrfiles.com/ugd/defcb2_d5d24421d7b94ae59c7b5385618bd33f.pdf
    • https://static.usrfiles.com/ugd/3283b0_1ea474dbc8ea4c9b96db57789f9a3e22.pdf
    • https://static.usrfiles.com/ugd/8de238_e87cc3d937af4ce38d2680c807586231.pdf
    • https://static.usrfiles.com/ugd/b8c837_31acf244f30c48d9ba84016a7ceea100.pdf
    • https://static.usrfiles.com/ugd/e23fbb_3a7ed69aa4d3495ba1347af3174411af.pdf
    • https://static.usrfiles.com/ugd/53cfc7_cf3b95bcc3bd4a4c99e2a44eca80ce21.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_off00005c53.bin
b540f7a855e2d4da85313656ba777b6551bbf51d8d43f49388ed3774de3fe2b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C53 5580 bytes
font_01_sfnt_off00006f53.bin
59b1e25492b2a3a7ed15fc31229fe1cd6020a4cc0f285c8176d1683f1edc8432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F53 10172 bytes

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