Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3699b237e848026…

MALICIOUS

PDF

48.6 KB Created: 2020-08-23 03:22:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45c0fb1a1a92fc06d8c9735c96127295 SHA-1: 866a8c6f91469e21ac34bf4f936b738372a9ed2c SHA-256: a3699b237e8480261582b9365004fd26147456d9f932eac94b4cbaeb20ff73c7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to a link farm designed for SEO manipulation. One of the primary links directs to a malicious redirector at 'ttraff.cc', which is likely used to obscure the final malicious destination. The document body and metadata suggest a lure related to a 'Bdubs menu pdf', further indicating a phishing or scam 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/pify?keyword=bdubs+menu+pdf
    • http://sikej.freedomheroesusahealingsanctuary.com/uploads/1/3/2/6/132695584/kuwenune.pdf
    • http://files.codetrainingandconsulting.com/uploads/1/3/2/3/132302995/609720e2.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/blunders_and_brilliancies_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/bedipokalepan.pdf
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/7547518037.pdf
    • https://cdn.shopify.com/s/files/1/0432/5975/6708/files/tidisuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/25502349999.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/rifazezafepupanosab.pdf
    • https://cdn.shopify.com/s/files/1/0438/6501/4437/files/nagewokarovutowimig.pdf
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/agatha_christie_biografia.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/3013/files/lafiju.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_off0000686a.bin
1117651d2602ee1a9b8579e3305659481b16291c4aa8789685cb727724b27311		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686A 4684 bytes
font_01_sfnt_off00007823.bin
5c2f7145b2d6f5b59547b576525d6e5d8d04cf545c4f908e07a4e755e54a4741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 14728 bytes
font_02_sfnt_off0000a669.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA669 4324 bytes

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