Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd29b4f45267216a…

MALICIOUS

PDF

41.1 KB Created: 2020-08-31 11:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 716b2cd9604234703e0c841330c6aff4 SHA-1: 260120ea08750cc3f755e7ce39a1130b84ec6d20 SHA-256: dd29b4f45267216a60ea853f531d09efc75d2242fd0ca4a1b8aba8fbc70342f6
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, suggesting a link farm or redirection strategy. The presence of multiple PDF links and a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK strongly supports this attack pattern.

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/wix?keyword=some+kind+of+wonderful+full+movie+fm
    • https://static.usrfiles.com/ugd/b5472a_1034e174c93d4d95871e42b95993053a.pdf
    • https://static.usrfiles.com/ugd/dc98cc_507effd0ba9a45ab9cd9e89ea61b8ef5.pdf
    • https://static.usrfiles.com/ugd/b8c837_2ec4c17ae9014076ab6ccb8166437399.pdf
    • https://static.usrfiles.com/ugd/b8c837_b54a9d3abc9d49a990bfec7a8d823e08.pdf
    • https://static.usrfiles.com/ugd/a18aa6_12eee108381b4dfe80e6bdfb746af490.pdf
    • https://static.usrfiles.com/ugd/cac9e4_c12027ca14de4dd19f5c3161d9119bb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b60198aeff6426893caf881b3b23bb1.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4cae5fa94474288b9034178c808b59d.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1287/files/47036733002.pdf
    • https://cdn.shopify.com/s/files/1/0430/4551/9513/files/55774319403.pdf
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/seran_pandiyan_song_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/benami_transactions_prohibition_amendment_act_2016.pdf
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/1830353686.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_off0000633f.bin
53e950d838c4241472f36a98138147086d163edabfb7e33f8e4f1ff1da95b0d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633F 4984 bytes
font_01_sfnt_off00007435.bin
b0c51ef3485e8e728ed702662b8b3b801b2905db305f13beeb7bda2c558368d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7435 10584 bytes

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