Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc3577ff50e9673…

MALICIOUS

PDF

33.6 KB Created: 2020-08-29 03:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4153585a56670ebcce8ed90758981a4c SHA-1: a38605ba3e029563910dd8a0a60514bdb33e9c8c SHA-256: 9cc3577ff50e96732bc95baaf77663bdf66458b3befe2e46df09f36317240940
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to lure users to malicious content through a link farm strategy.

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=kool+and+the+gang+cherish
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/sozitolawifikaxez.pdf
    • https://cdn.shopify.com/s/files/1/0458/1520/1958/files/sony_download_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/dulatixi.pdf
    • https://cdn.shopify.com/s/files/1/0463/9073/9099/files/12907863817.pdf
    • https://static.usrfiles.com/ugd/b8c837_b905e840e05e4104a64b7ce3b4252619.pdf
    • https://static.usrfiles.com/ugd/b8c837_228fc94fa41a421c8271f8af1ff7f281.pdf
    • https://static.usrfiles.com/ugd/b8c837_4101ed6d31234ea5a6c78f6d21b6cf85.pdf
    • https://static.usrfiles.com/ugd/b8c837_8195b199f5f944f8bde9ad8f53cfa088.pdf
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/rozijafebone.pdf
    • https://cdn.shopify.com/s/files/1/0431/6515/5487/files/gisado.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/natinisopipowuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/whirlpool_duet_washer_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0443/1210/1020/files/hirohiko_araki_art_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/vumipilawotiraburesamobif.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_off0000463a.bin
31c9a0f743b288df05996584ae8da8fe4b4d791b413696b34b3ec2cea262b1e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x463A 5172 bytes
font_01_sfnt_off000057cb.bin
ea92c00c3ccd51bfc6359374fdcad5a6ac9656ef50ed1a652e1fee97dcfce8d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57CB 10096 bytes

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