Malicious PDF — malware analysis report

Static analysis result for SHA-256 513a4447707b390c…

MALICIOUS

PDF

54.0 KB Created: 2020-08-30 05:58:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa1a8575c409d061227984d90435b244 SHA-1: 34d2685275d6fb95c57f0effac5348bcbc858889 SHA-256: 513a4447707b390cc511d025cd288a0087b21543553bed5a7193713161d01a3e
160 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs indicative of an advance-fee scam, specifically a lottery or parcel delivery lure. The presence of a link farm heuristic further supports the malicious intent of directing users to potentially harmful sites.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=paragon+for+windows
    • https://static.usrfiles.com/ugd/4c1554_3cc49583ef1e46e5842e5d7c99bc43af.pdf
    • https://static.usrfiles.com/ugd/b8c837_bc438509ef674caf95ed813883331695.pdf
    • https://static.usrfiles.com/ugd/b8c837_beaf0f4ae0944100b8047c300d0beb16.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/mozakaxen.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e8dc1c3d41843349c66fd4d5ca0aa5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_d83fa47f809d49b995d078fd06782ada.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/64622033048.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/zozidomexefedetegabi.pdf
    • https://cdn.shopify.com/s/files/1/0438/1969/6290/files/how_to_day_trade_for_a_living_andrew.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_off00007e9e.bin
4cd0220eeb94023d1217d54c40240ea58903830c9c4cbfaa51ebbf4a1bb32eee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9E 4724 bytes
font_01_sfnt_off00008eb3.bin
bbf60a9eea1f628a8cbedab69f1d9df2d869896112943005d8339be65f751346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB3 14888 bytes
font_02_sfnt_off0000bdc9.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDC9 4324 bytes

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