Malicious PDF — malware analysis report

Static analysis result for SHA-256 25be39eccbefa374…

MALICIOUS

PDF

49.0 KB Created: 2020-08-28 21:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32023db6c736f7a9b9d888b652c6c930 SHA-1: 15b54b0be54d4660751914e570d8f0f13fad759a SHA-256: 25be39eccbefa374c9a8b6a9fcdab375b094f14c354443ffc14704e3ffb2b7ee
128 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains the same URL and references a game title, suggesting a lure. The presence of a PDF link farm also indicates an attempt to distribute malicious content widely. No scripts were extracted, limiting the analysis of direct execution behavior.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=aura+of+menace+pathfinder
    • https://static.usrfiles.com/ugd/b8c837_da2133d936164a218f79a8d2f4a3d882.pdf
    • https://static.usrfiles.com/ugd/b8c837_a70e80a52f3a4c23bb7641c38ced28af.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0d15a98e73a46568002f219140aba0e.pdf
    • https://static.usrfiles.com/ugd/b8c837_75ab08b098444edba480403e2c7413b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_771c7bb782ae4ffabacd897664d6389f.pdf
    • https://cdn.shopify.com/s/files/1/0433/3617/1679/files/takumekugesuxobemejesonuk.pdf
    • https://cdn.shopify.com/s/files/1/0439/9969/0910/files/39714660878.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/mathematics_book_for_gate.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/79044768151.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/25373051996.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/what_is_the_best_font_for_japanese.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/ffxiv_triggernometry_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/13696982684.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_off00008360.bin
2ec416536247cacfcf1bd54b60be8f4768a17022ba489d6b150b9de60d0e7e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8360 5176 bytes
font_01_sfnt_off000094ca.bin
d3a8477b0a9630cf0712858f1475509960b2bd62e569c3738c76614f2ba3e266		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94CA 10244 bytes

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