Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abf4db501528f55…

MALICIOUS

PDF

37.4 KB Created: 2020-08-12 23:40:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73a38e39f7e3b49178b602a16673aec0 SHA-1: 9a28ba8bbd67360da07266650a6ce5a490e4d933 SHA-256: 3abf4db501528f5517f256861e658ba37ffd1325e1aa425cc3c5e6965a484567
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, directing users to 'https://ttraff.cc/wb?keyword=phaser%207800%20user%20manual'. This URL is likely part of a phishing or scam campaign, attempting to trick users into believing they are downloading a legitimate user manual. The document also contains a large number of embedded links, many hosted on Shopify, which is characteristic of SEO link farm abuse for traffic redirection.

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.cc/wb?keyword=phaser%207800%20user%20manual
    • http://files.heathermcclarriephotography.com/uploads/1/3/2/7/132740281/xavumolida.pdf
    • http://files.lifecoachmaurita.com/uploads/1/3/2/8/132815008/8781001.pdf
    • http://files.thesurge.cc/uploads/1/3/1/4/131483053/dodivo.pdf
    • http://files.chihdesignltd.com/uploads/1/3/2/8/132814241/roxajadotimijam_wosuzokubuwunux_gubixi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/woveledenarumazazu.pdf
    • https://cdn.shopify.com/s/files/1/0451/7157/2885/files/kutonilemimajilasexasenis.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/57027581241.pdf
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/murezofasitinijitib.pdf
    • https://cdn.shopify.com/s/files/1/0452/1240/1815/files/85586868198.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/96860702929.pdf
    • https://cdn.shopify.com/s/files/1/0432/8315/3056/files/62594602941.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/31899486928.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/xonozanejiritaxidab.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/mabuwejowasakelubo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/zutakupusitumeluzewuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/72211871253.pdf
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/22335129634.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_off00005430.bin
f4a31543adf7766a85ea60c16e14e91e1fbf900bf6e09b7e522dcecff0e59e15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5430 5340 bytes
font_01_sfnt_off00006631.bin
f116ea0fa502414cbfe6303b3d851ce62b8d108685e7418c452324c0331fcd78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6631 10344 bytes

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