Malicious PDF — malware analysis report

Static analysis result for SHA-256 351130dc0dc7bba1…

MALICIOUS

PDF

37.8 KB Created: 2020-08-18 20:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68af57280d15bb9882a48c27bd0a07fb SHA-1: 50ad3cb4bb6c80d2f6d449b999bdea014da1decf SHA-256: 351130dc0dc7bba1eb087b1b8d8513dcd2e076620d3c62a5427af98f29751235
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF also contains a large number of external links, as flagged by PDF_SEO_LINK_FARM, indicating a potential attempt to manipulate search engine results or distribute content widely.

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/pify?keyword=black+platform+heel+ankle+boots
    • http://files.thesportdome.net/uploads/1/3/0/8/130874330/1231640.pdf
    • http://tuxebediw.aaandc.org/uploads/1/3/1/4/131454762/jofeguvobekiresov.pdf
    • http://kimoli.southernalbertabowhuntersassociation.com/uploads/1/3/1/4/131452883/vevano_filawesuruba_sisigemojex.pdf
    • http://luzaxu.glittermesassyonlineboutique.com/uploads/1/3/0/8/130874620/razigof.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/linksys_e1200_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/fuziwexisuwefukedejaro.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/saxejoboduma.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/wejaxosufigadik.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/88883943705.pdf
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/ae_power_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3747/files/separajigenanonajan.pdf
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/8460325991.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/mefigarerumites.pdf
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/bejozofutuvetozesuz.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_off00005519.bin
e7253e16b59dcc2e4fdbb34e796f62b0898a2d48d0e104798a8d78fe6435ec14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5519 5508 bytes
font_01_sfnt_off000067a9.bin
e41c9329dabb021ca9e8bdda10c3de6a6d5428319925b157feb98deb00ad8a16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A9 10312 bytes

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