Malicious PDF — malware analysis report

Static analysis result for SHA-256 333fa31a5c68c6f2…

MALICIOUS

PDF

46.6 KB Created: 2020-07-31 04:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 903981890e80982d28988d3775c8d8b5 SHA-1: 38238449a39e15fbae11cbb0e5d78065c2ccebfc SHA-256: 333fa31a5c68c6f28e8ca38f04b70fcff544869b475e22a99fcef9502f04c9ca
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 Shopify domains hosting other PDFs, creating a link farm. One of the primary links redirects through a known malicious redirector, ttraff.cc. This suggests a phishing or scam campaign designed to lead users to malicious content under the guise of providing sheet music. No scripts were extracted, and the document body was heavily obfuscated.

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=carol+of+the+bells+trans+siberian+orchestra+sheet+music+pdf
    • http://files.ufsigninggators.org/uploads/1/3/1/6/131636954/lezowugorofoti.pdf
    • http://files.cecilyscloset.org/uploads/1/3/1/6/131606035/dixalitefuxu.pdf
    • http://files.menasgerovei.lt/uploads/1/3/0/8/130874361/498984.pdf
    • http://files.kel-a.com/uploads/1/3/1/4/131483955/mafefegixomogiranoz.pdf
    • http://files.ufsigninggators.org/uploa
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/jisuwibowut.pdf
    • https://cdn.shopify.com/s/files/1/0430/3234/6773/files/92327392883.pdf
    • https://cdn.shopify.com/s/files/1/0431/0342/0570/files/13748909532.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/84949031759.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/sutuza.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/zemozogurupotakebotot.pdf
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/17900449034.pdf
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/43962211273.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/67372981338.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35679391278.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007844.bin
153a54702a9bb29a5f5cf433b1f56114d113626cc97c46967689d401e20da8c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7844 5440 bytes
font_01_sfnt_off00008a8e.bin
15adaa01a25d4c1fd50443b521392500750349ab4d0f3bc42457218ab0bc8247		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8E 9996 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.