Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3e12e4c9b1cd4eb…

MALICIOUS

PDF

52.0 KB Created: 2020-08-12 15:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63582be62c3b19a53ee45bc048209f46 SHA-1: 9c2505b59dc56957a1869ebbea34b42327c1f27c SHA-256: a3e12e4c9b1cd4eb37bfc91e57f2f5302ba7c979a409bcf757c93e622ea841f9
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. One of the primary links, https://ttraff.cc/wb?keyword=vaporesso%20luxe%20skrr%20manual, is identified as a malicious redirector. This suggests the document is designed to trick users into clicking these links, likely leading to malicious content or further compromise. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact final payload.

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=vaporesso%20luxe%20skrr%20manual
    • http://files.garykitecomputerservices.com/uploads/1/3/2/7/132712005/6173644.pdf
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/0/8/130814225/6f3ab465.pdf
    • http://files.jbietola.com/uploads/1/3/0/8/130874120/265214.pdf
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/wumejadibema.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/nenewebon.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/kokogefapejidaxufom.pdf
    • https://cdn.shopify.com/s/files/1/0434/6091/9446/files/74307996912.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/central_park_new_york.pdf
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/xonumeraj.pdf
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/woleviwirezilovomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/40080786271.pdf
    • https://cdn.shopify.com/s/files/1/0435/6633/4111/files/affective_commitment_journal.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/23865955117.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/composite_materials_by_kk_chawla.pdf
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/bufevijulalifisinupevo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/IMAGEFAP._COMHTTPS_WWW._GOOGLE._COM.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_off00007041.bin
e6a947c162445f381a124550b6ae6362666a44d61c5f0b21b17fbfaacd308143
pdf-font-stream PDF embedded font (sfnt) at offset 0x7041 4816 bytes
font_01_sfnt_off00008082.bin
f55ec3431b7ba633c633fc19d138b593b375d55c43b0c959ac4df5f3822fb080
pdf-font-stream PDF embedded font (sfnt) at offset 0x8082 16712 bytes
font_02_sfnt_off0000b306.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xB306 4324 bytes