Malicious PDF — malware analysis report

Static analysis result for SHA-256 f35325ed6acc8907…

MALICIOUS

PDF

97.1 KB Created: 2020-09-18 12:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 697441903c2b0ed89bc174435d57f6ac SHA-1: d42945998a1ed2334a6d154ccec7cc0fdc7d0010 SHA-256: f35325ed6acc8907cf07bb4687d066e43812840e905684d5170c1e3f7022fd68
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, characteristic of a link farm, designed to lure users to malicious websites. The primary malicious URL identified is 'https://ttraff.club/wix?keyword=arena+of+valor+mod+apk+unlimited+money+and+gems', which appears to be a redirector. The document body, though heavily obfuscated, contains references to game mods, likely serving as a lure.

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.club/wix?keyword=arena+of+valor+mod+apk+unlimited+money+and+gems
    • http://doxefi.rentalcottageontario.com/uploads/1/3/0/9/130969656/fe55f2f2a.pdf
    • http://penit.fiveonfoxhill.com/uploads/1/3/2/3/132302794/xemisinirej.pdf
    • https://08d36258-38cb-49a0-b17b-cb88c3a55c55.filesusr.com/ugd/6166c9_ea1aa2473b494d5b97aaf89e2c929c3d.pdf?index=true
    • https://200cbb3a-f808-11ea-a328-fc4dd43d38a6.filesusr.com/ugd/fd4c29_f8822443eeda4fc98dff82760e6ff4bd.pdf?index=true
    • https://c3db8acf-e02a-4236-8e69-aac9f6655a86.filesusr.com/ugd/fb5067_8c0048d1b62947289d47e4579ea3ac75.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/ankush_raja_ka_bhojpuri_song.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/fewesawuguzoge.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/4200953274.pdf
    • https://cdn.shopify.com/s/files/1/0434/1448/7190/files/tulelujobiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/sahamati_account_aggregator.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/zebikalufuxajinap.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_off00010624.bin
e6907b45f17e51cd9d34a1728380e25f1d082a75ad83d527c950f47e3cecdea8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10624 13660 bytes
font_01_sfnt_off00013254.bin
6330eaaa82a00440db8c36e21212c6958d77f9b9a97527c5750242e52e44ca0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13254 5576 bytes
font_02_sfnt_off00014556.bin
50b99dbdc5f68a0e8248c80bd0d36d1c5052a710a278d737a11460efd1ec20fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14556 16892 bytes

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