Malicious PDF — malware analysis report

Static analysis result for SHA-256 e718e3b1b139d682…

MALICIOUS

PDF

46.1 KB Created: 2020-08-29 04:28:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6657f175e1b072cce114358da8375b7c SHA-1: adf9deebc00aa1fbcd430cad188853862b936530 SHA-256: e718e3b1b139d68224b585515d7f4092a4607a5fcb10844e488b3386433443b6
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, but one critical link redirects to `https://ttraff.cc/wix?keyword=pixels+to+mm+conversion`. This redirector URL is flagged as malicious. The document body is heavily obfuscated but contains the same redirect URL. The presence of a malicious redirector suggests a phishing or malware distribution attempt.

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/wix?keyword=pixels+to+mm+conversion
    • https://cdn.shopify.com/s/files/1/0459/1386/6389/files/cateye_rapid_x3_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/mumesogomuzetegebufer.pdf
    • https://cdn.shopify.com/s/files/1/0441/0828/4056/files/avg_antivirus_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/jabupurotaxamodefugatovi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/pizejum.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba6ec219be654ee5ba761304c1b9ba71.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d82c79d688e4fb28c8073b1860b3c42.pdf
    • https://static.usrfiles.com/ugd/b8c837_c4561c2183f94120b0ed500ba06b6d3c.pdf
    • https://static.usrfiles.com/ugd/b8c837_2b3463456e4549edbdb81a62087af4a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_92a3d4561d52403aa067b1a14aca6fb0.pdf
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/goxujifopunevewivowizi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/mavewawukeroliwutiledid.pdf
    • https://cdn.shopify.com/s/files/1/0429/6038/8262/files/9739876848.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.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_off00005f12.bin
8a6a8a595ded2ec2f9bbf34d8b69fd5337cdc76cce0ca4271f3dc1edb28bef58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F12 4652 bytes
font_01_sfnt_off00006ebf.bin
aa1a1f4d7f71bfbfd2eb6069e32a4b5209223aa2ec3f13a8ce2d21d7e7294079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBF 14416 bytes
font_02_sfnt_off00009c0e.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0E 4324 bytes

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