Malicious PDF — malware analysis report

Static analysis result for SHA-256 4df6a38763010084…

MALICIOUS

PDF

51.4 KB Created: 2020-08-29 18:17:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe0836369d509fd42b346ae6c8576321 SHA-1: 85b85c120745e37c8a0343c387a4f15cc03c0941 SHA-256: 4df6a38763010084576042aabacf5676bcc7cb4c3631ee5c005415d0b28495d8
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a redirector URL, disguised as a game control manual. The primary heuristic indicates a malicious redirector link, and the document body contains the URL that leads to the malicious redirector. The file is likely a lure to a phishing or malware distribution site.

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=wwe+2k19+control+manual
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/52424897512.pdf
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/tagafuwijakitovatexodakaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/constructing_sas_and_asa_triangles_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7308/files/netuwopewofibage.pdf
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/diablo_2_hammerdin_build.pdf
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/riruwiganuroz.pdf
    • https://cdn.shopify.com/s/files/1/0445/4963/6255/files/modoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/broiler_chicken_weight_chart.pdf
    • https://cdn.shopify.com/s/files/1/0456/8419/5487/files/alta_mesa_resources_earnings_report.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_b785ac28fd7645bba3167db2226f8fea.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd13ff5138ca4761afb1914a49b64fe9.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f0762c458cd4268a4fb6e90216b3018.pdf
    • https://static.usrfiles.com/ugd/b8c837_2db59139b67d466e9a131c6c50176046.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f693ccbc5d6437c9ed79c805889af93.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_off00008b70.bin
6c2363738923a588a2f5c614f8e647b2faaf848f51f8b2ad92a3efb920431817		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B70 5276 bytes
font_01_sfnt_off00009d64.bin
40b24d0c444da89a54109b39b2dfdc6cffde10f57f51998961450e43bc7162d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D64 10440 bytes

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