Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b9e7d4ed7a7036…

MALICIOUS

PDF

60.5 KB Created: 2020-08-02 07:37:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ae7fc4cce575c882011e273a7509b76 SHA-1: 2b1c83b67f1cdb8fddfafc7cdf60ebb777888647 SHA-256: 95b9e7d4ed7a7036fb273685771966b4e68f14b6c8b0656f5f6e9364c57b96f9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a deceptive lure promising a serial key for Adobe CS5 Master Collection. It embeds a link to `ttraff.com`, identified as a malicious redirector, which likely leads to further malicious content or malware. The PDF also contains a large number of links to Shopify domains, suggesting a link farm for SEO manipulation to distribute the malicious 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.com/pify?keyword=adobe+cs5.+5+master+collection+serial
    • http://files.optimistclubofcarlsbad.org/uploads/1/3/1/4/131453598/660036691b4e.pdf
    • http://files.pasanity.com/uploads/1/3/2/8/132815791/jusegi-purunasalojajo-kerizur-raziburadulev.pdf
    • http://files.shopframesplates.com/uploads/1/3/2/6/132682723/sukeb_gagor_biwupevowak.pdf
    • https://cdn.shopify.com/s/files/1/0438/3598/1974/files/88400133660.pdf
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/31429423883.pdf
    • https://cdn.shopify.com/s/files/1/0433/9535/0684/files/sepas.pdf
    • https://cdn.shopify.com/s/files/1/0437/1261/0472/files/72309308974.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/34544304731.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/joxunilavobuzarokuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/31060418747.pdf
    • https://cdn.shopify.com/s/files/1/0430/2536/7193/files/zunedazu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/75313616049.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4702/files/westworld_pilot_script.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/80815481397.pdf
    • https://cdn.shopify.com/s/files/1/0435/9186/0383/files/wanere.pdf
    • https://cdn.shopify.com/s/files/1/0428/6549/2127/files/gopedunerug.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/
    • https://cdn.shopify.com/s/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab3d.bin
d0b2782641d6916141c0852bcb5190aa0dc65770009f9bf3f2bbad48bed09035		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB3D 5372 bytes
font_01_sfnt_off0000bd70.bin
7c71ebe77d4c207ea9e3aa82e7983d90ffd6c36cb0da0e1ed680d408d2e0ac92		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD70 11812 bytes

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