Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcceb7c1759691a7…

MALICIOUS

PDF

41.4 KB Created: 2020-08-08 15:14:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b0f3decb9bac6e14ad8626df5202beb SHA-1: 7279b8c880bf3fd003462c6e805f310bb3b0215d SHA-256: fcceb7c1759691a72dfa267c5553818e9764e1b61b693a91c89f1908f6021b77
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be the same redirector, suggesting a lure to download a PDF. The PDF also contains a link farm, indicating a potential SEO poisoning or spamming campaign. No scripts were extracted from this sample.

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.com/pify?keyword=counselling+skills+for+dummies+pdf+free+download
    • http://files.syvma.com/uploads/1/3/1/6/131606011/jepufugiga-misibuzulixa-mogibogadiwamor.pdf
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdf
    • http://files.whatisabbydoing.com/uploads/1/3/2/6/132681880/gomatovezafanurepat.pdf
    • http://woniku.holly-west.com/uploads/1/3/1/8/131856772/8c2c8223a4f.pdf
    • https://cdn.shopify.com/s/files/1/0429/4131/7276/files/90138587352.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/xazupabizilowaburogaza.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/38305528404.pdf
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/8416035889.pdf
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/38161019307.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/brick_masonry_in_building_construction.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/27813378510.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/dazerusibazananurosuzumow.pdf
    • https://cdn.shopify.com/s/files/1/0434/7982/6597/files/jonuvakonokibepaxalimisa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/80189767712.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_off000054ae.bin
955a1cca75d312d2912ed22a38782b6f5e5287d5733c60789dd27e78f8df7963		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54AE 5340 bytes
font_01_sfnt_off000066d0.bin
809e8a79daa6b4a6d883ce45fd599abb3672a7ef79f863564ae97d8febb7347f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D0 10580 bytes
font_02_sfnt_off00008a66.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A66 4324 bytes

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