Malicious PDF — malware analysis report

Static analysis result for SHA-256 470ea71ad93651ba…

MALICIOUS

PDF

38.5 KB Created: 2020-08-31 17:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 477569ed3bf449266aaae9dd4cce56a3 SHA-1: de2e5b226f1e1e74381731a38bb4ee71236278a9 SHA-256: 470ea71ad93651babfa0badd7bf790e3ed27fc522edbcf9e140302757b2af613
128 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and multiple links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=short+stories+in+telugu+pdf+free'. This redirector likely leads to further malicious content or exploits. The document body, though heavily obfuscated, contains references to PDF files and the redirector URL, suggesting a lure to download malicious content disguised as 'short stories in telugu pdf free'. The presence of embedded JavaScript and numerous links indicates an attempt to leverage the PDF format for malicious redirection and potential exploitation.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/pify?keyword=short+stories+in+telugu+pdf+free
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/xomujesogelefibes.pdf
    • https://cdn.shopify.com/s/files/1/0431/7557/5703/files/nariwiwa.pdf
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/juxijusarulasonu.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb538a5856ec400bbad7fdf3f6db4f36.pdf
    • https://static.usrfiles.com/ugd/99afdc_5ea208fbf69c4433b8e4b24c33976857.pdf
    • https://static.usrfiles.com/ugd/ce77c6_11e7a347ae8a4c60892edeba2824cdd9.pdf
    • https://static.usrfiles.com/ugd/b8c837_d08cb33ae5f14941bfc7375b4b153197.pdf
    • https://static.usrfiles.com/ugd/b8c837_37ebca5215094a1cb1e566d6df96baff.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf3e10c080e9492e8cd5ef00654012a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e529965e6e147beb781697430368693.pdf
    • https://static.usrfiles.com/ugd/3b7182_11019a1029b4422fbc5628f115d9fc0a.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a32f9a173434f7e8917de39d3e0c75a.pdf
    • https://static.usrfiles.com/ugd/afe78f_f2608b9374e5427e9572ec5a55771253.pdf
    • https://static.usrfiles.com/ugd/74a852_c0e50f64133b493eb20db4a0764333a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca084c4f7b0541d7baabb864e8fe120d.pdf
    • https://static.usrfiles.com/ugd/b8c837_aeb44110d99648c3b79d8d75e65a9495.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_off0000574c.bin
06bf70974b4d0a37e4e0037cafbab6b99ff8f646bd29538ee6f6de22e782c20d
pdf-font-stream PDF embedded font (sfnt) at offset 0x574C 5196 bytes
font_01_sfnt_off000068f4.bin
32b4195a86726d6aac270352f59088793bc249e3855c71deccd7d7c1ab598a90
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F4 10716 bytes