Malicious PDF — malware analysis report

Static analysis result for SHA-256 501e18bca6a01af3…

MALICIOUS

PDF

46.8 KB Created: 2020-08-03 18:10:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f91b5c998c9e14b946f0c1cca84b801 SHA-1: 65710d091829b2198b1f34b38e774ee10eadc66b SHA-256: 501e18bca6a01af39ea8e7062db40b0752ab4898a278f1e2ef721c3d01273270
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. These links ultimately redirect to a malicious URL (ttraff.cc), indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains text related to 'voucher types in tally erp 9 pdf', likely a lure to attract users interested in financial software documentation. The presence of numerous external links and a malicious redirector strongly suggests a social engineering attack.

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/pify?keyword=voucher+types+in+tally+erp+9+pdf
    • http://files.professionalservicesgarciarj.com/uploads/1/3/0/9/130969440/lizabizafenibeletal.pdf
    • http://files.aboundingfaithnj.org/uploads/1/3/0/8/130813650/018156c5c8.pdf
    • http://files.meredithglisson.com/uploads/1/3/1/1/131164239/1014178.pdf
    • http://files.markwaldstudio.com/uploads/1/3/1/8/131856770/e383dedbf9c400e.pdf
    • http://files.hotgandts.com/uploads/1/3/0/8/130813413/zavedevobufutopuso.pdf
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/budabunurapizog.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/sinofepabopefanirunu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4822/9271/files/50147405187.pdf
    • https://cdn.shopify.com/s/files/1/0434/4892/6364/files/download_full_oxford_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/11873121646.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/william_finbar_kennedy.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6904/files/14310963943.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/oath_of_vengeance_5e.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/sims_4_beards.pdf
    • https://cdn.shopify.com/s/files/1/0434/2903/6199/files/nadoxapekotedipegebulib.pdf
    • https://cdn.shopify.com/s/files/1/0432/3780/2146/files/mixuvarosewagi.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_off0000691d.bin
d57e2c7b604f5655c44697fda4da8785030875c12b05b46bdb7787f3d77662ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x691D 5348 bytes
font_01_sfnt_off00007b46.bin
4669f3a332c43718384e794b485b8e799978a6d4a9d33ef6d75d0747feec259b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B46 10080 bytes
font_02_sfnt_off00009ddf.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDF 4324 bytes