Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cc186560fb1a57…

MALICIOUS

PDF

40.8 KB Created: 2020-08-31 12:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f287450396aec40459fd0a6181ec5a1 SHA-1: f15f128faaa64dc9a54ef3cf36032a0d8c432eda SHA-256: e7cc186560fb1a57b11c21b80c76f5b032d2313ea0e73ce1d73a9baf3a51320d
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a flight controller manual. The document also functions as a link farm, embedding numerous external PDF links, many of which point to static.usrfiles.com. No scripts were extracted from this sample, and the document body was heavily obfuscated, but the primary malicious intent is clear from the embedded malicious URL.

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/wix?keyword=arducopter+flight+controller+manual
    • https://static.usrfiles.com/ugd/6846fe_5503ca4e785d4bd1bf8bc228e70cdb44.pdf
    • https://static.usrfiles.com/ugd/4c1554_d78a0874e9fb47a89104394c6b1c3d4f.pdf
    • https://static.usrfiles.com/ugd/b8c837_69ac3770fcc0410eac93eacff9e17f07.pdf
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/kezivaseras.pdf
    • https://cdn.shopify.com/s/files/1/0443/0325/3660/files/baixar_adobe_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/encyclopedia_galactica_hitchhiker_guide_to_the_galaxy.pdf
    • https://static.usrfiles.com/ugd/eaf48f_e66b9fa796954d3ca086525de64d5807.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_27942006322c4aa794afcc8bdcb977f0.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_off000060cd.bin
770048040e886e76a6aff3dabd5e5e7ddff006273b530ddb36b9fd10b4294923		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60CD 5380 bytes
font_01_sfnt_off000072f2.bin
2386a31049a95eca7a1357cb54df57a798023498481afbe1ba6f5810ce082278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F2 10564 bytes

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