Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f65f18cfd748586…

MALICIOUS

PDF

64.2 KB Created: 2020-08-31 13:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a48d8345fd7f304280286b29e1d77f29 SHA-1: f9117efa4ebf80247db2e094741fc9feb7df439d SHA-256: 3f65f18cfd74858603843067cbd0c32200a557dd525256f7dcff243153b7a013
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'guerras carlistas resumen pdf' and includes the malicious URL. This suggests the document is designed to trick users into visiting a malicious site by posing as a legitimate PDF resource.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=guerras+carlistas+resumen+pdf
    • https://static.usrfiles.com/ugd/b8c837_2543ab1ed7d14a999ebfdb3c54418f23.pdf
    • https://static.usrfiles.com/ugd/83b1b3_bba39ce3fdbe4c0788493f2227c29bcf.pdf
    • https://static.usrfiles.com/ugd/510a18_35d7a5269f14453e95dd86f3c2b6ea81.pdf
    • https://static.usrfiles.com/ugd/bfbc46_c269525d350b4304b69fbf8c22a5b378.pdf
    • https://static.usrfiles.com/ugd/10e3af_c616cb78d2754b7fa5fd398028949c7b.pdf
    • https://static.usrfiles.com/ugd/7c3584_453fafe496c64c8f8ff42ede1bf6c00e.pdf
    • https://static.usrfiles.com/ugd/b8c837_29cc4f099a0f4d629efbc9cdbdbc87e2.pdf
    • https://static.usrfiles.com/ugd/238140_726eee5d56ab4d818c96df983e043651.pdf
    • https://static.usrfiles.com/ugd/40b9e6_a7ca3592997b4cdf880748d127a60492.pdf
    • https://cdn.shopify.com/s/files/1/0431/7868/8663/files/kopaxeriwowisikorow.pdf
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/92589356748.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_off0000bc93.bin
1f5b7080ce3549dbee970bc3b5ed3219645548e8673c01f94d9ca351e2b5252b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC93 5332 bytes
font_01_sfnt_off0000ce9e.bin
0d44f12d75584443fd7c9696a485db395c9920802a0a86b1cfbaade64172705a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE9E 11160 bytes

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