Malicious PDF — malware analysis report

Static analysis result for SHA-256 3487d19f199e81ca…

MALICIOUS

PDF

48.7 KB Created: 2020-08-03 06:49:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f34f897cb7cbf508a976bba76c44188 SHA-1: 5b9d921a2c960aa0b82e89a2b0f995e6169c07be SHA-256: 3487d19f199e81ca8e25270976bcb830e806d59cde810eb12b419b3f68774fa2
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. This suggests a phishing or scam attempt designed to lead the user to a harmful site.

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/wb?keyword=nnpc%20organogram%20pdf
    • http://jubuku.ajportablebuildings.com/uploads/1/3/1/4/131437423/javuvimixufab-nifadunu.pdf
    • http://files.thegeorgiaruthhouse.com/uploads/1/3/1/8/131871501/0d6ca592f82e6ea.pdf
    • http://files.ukprestigeproducts.com/uploads/1/3/1/3/131398194/gosisobaj-ludufanumex-wiburonesiti-vewabovuti.pdf
    • http://files.t6bdriver.com/uploads/1/3/1/3/131384436/zelaxe-boxowizelanur-tigurugitegej.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/milotusuzafisutemutu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/85355883525.pdf
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/negukenajapukupo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/rizexuxagodewigorev.pdf
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/49170164810.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/convert_csv_to_json_python.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/genezerubidonunelapal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
    • https://cdn.shopify.com/s/files/1/0432/1892/7776/files/dawifesip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/38891607338.pdf
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/guvasur.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_off00006ab3.bin
a727febbd55c1c8462a7056d300d5b6d1aadf94102791d0cf3a432000dee5355		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB3 5236 bytes
font_01_sfnt_off00007c77.bin
aea45f30b3a97196d04048b2a54a1c883bf7df1c1d091e5463e883c4e838857d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C77 10488 bytes
font_02_sfnt_off0000a07d.bin
c7794edf66450be4413fc7c1fc8d9a190cce4516b3e2b5a5adbc34dba3cd78a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA07D 16224 bytes

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