Malicious PDF — malware analysis report

Static analysis result for SHA-256 362254c3e13b10f9…

MALICIOUS

PDF

59.8 KB Created: 2020-08-31 17:43:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c7877c32c38a15ec376627b5363dbb SHA-1: f912469e9379220313d07158941ab6cc9d15b90e SHA-256: 362254c3e13b10f92e2f0a155fd2cc448c8eb7cbc08e35849e70ad91144db04e
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including a critical link to a known malicious redirector at "https://ttraff.cc/pify?keyword=original+risk+rules+pdf". This indicates a phishing or social engineering attempt to direct the user to malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. No scripts were extracted, and the family is unknown due to the lack of specific indicators.

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/pify?keyword=original+risk+rules+pdf
    • https://static.usrfiles.com/ugd/b8c837_f792ba54f7334e22b0ec3c5a7773eb15.pdf
    • https://static.usrfiles.com/ugd/b8c837_7499261b048c48148410d7ed21b63506.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b57079a03574ee384b79c52a839f77f.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0d15a98e73a46568002f219140aba0e.pdf
    • https://static.usrfiles.com/ugd/87b9a8_0701d2df8fba404b81e098a698d8a2f3.pdf
    • https://static.usrfiles.com/ugd/f103bb_ba7bf49dc51d4edd9fd04dcfdc6f05a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_01bf716fa43747cb81617682ec72c318.pdf
    • https://static.usrfiles.com/ugd/63022f_eaeea80b27c94581be408cc9fb9ad9e9.pdf
    • https://static.usrfiles.com/ugd/9374a7_c79684c1234d4d0bb05c33f91f3463fb.pdf
    • https://cdn.shopify.com/s/files/1/0436/0346/0259/files/tunutetejomes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51106899687.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/65604330667.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobirunutopuwipigodilig.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/wiline.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_off0000ac69.bin
5c972d81224026535514d0ea2a355db1f6891307ab2bd050d1262f5ae80ccd45		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC69 5300 bytes
font_01_sfnt_off0000be7f.bin
4de47fc600cef5dbdec04896763812a1a87c8759da404c4da445c6e42275e233		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE7F 10600 bytes

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