Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d65a5aeceb88f05…

MALICIOUS

PDF

39.4 KB Created: 2020-08-31 07:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64fb98489132c5826aa7a0cc0cf32552 SHA-1: 700ee7b69b5dac6d49d03307c3f566fbbbea2d90 SHA-256: 1d65a5aeceb88f052b47b8223abac399968154f4e8cd0593646a2d7f439c1013
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=sistema+de+seduccion+subliminal+avan'. This indicates the document's primary purpose is to lure users to a potentially harmful website. The file also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/wix?keyword=sistema+de+seduccion+subliminal+avan
    • https://static.usrfiles.com/ugd/599f1c_1624a03debb1489690965860bd988c1f.pdf
    • https://static.usrfiles.com/ugd/b8c837_38fc3c2a44a84348b772489fde5dbe44.pdf
    • https://static.usrfiles.com/ugd/ac72e0_d1f6b676c5ba4dba979aeafa733fcef0.pdf
    • https://static.usrfiles.com/ugd/2b25b5_5ddb2b7bbae941d2a27dcdbaaf177a2a.pdf
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/lumefavagudajijir.pdf
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/bibliography_latexlatex.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/14185387730.pdf
    • https://cdn.shopify.com/s/files/1/0436/1102/9667/files/fashion_trend_report_2019.pdf
    • https://cdn.shopify.com/s/files/1/0450/8313/2056/files/discord_chiaki_fan_club.pdf
    • https://static.usrfiles.com/ugd/6203b9_dd5d3751e126450baf40378dfdf9b6a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_24e161106c194280bc354221f0f6fc7c.pdf
    • https://static.usrfiles.com/ugd/0049ca_7c118ce9d3954081951ef3830482c065.pdf
    • https://static.usrfiles.com/ugd/4b68be_1e741405b5e64668a5f9f3c491d0df38.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fab.bin
57bf3446a899ec3dfc0475415738f50ed3929037d8214de412bbca8e12a6b5f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FAB 5172 bytes
font_01_sfnt_off00006118.bin
28b431ba46266d42fb2800088350a6cd5e2ebf0958a403a3a81d654b05c089aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6118 9700 bytes
font_02_sfnt_off00008251.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8251 4324 bytes

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