Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc0f3891dd14c057…

MALICIOUS

PDF

33.6 KB Created: 2020-09-01 21:09:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abc65d7df2bff1ff6c148170a8c62e2f SHA-1: 096d78762f091f6ba094bdd61229a2557a26948b SHA-256: bc0f3891dd14c057df37916363f85750a1ce0828def4533e856fd1ce7dd4946f
150 Risk Score

Malware Insights

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

The PDF document was flagged for containing a malicious redirector link and a link farm. The primary malicious URL identified is https://ttraff.ru/wix?keyword=bachna+ae+haseeno+movie++ganduworld. The document body contains garbled text and a repeated URL, suggesting it's designed to lure users through deceptive links rather than provide legitimate content. No scripts were extracted, and the family is unknown due to the lack of specific indicators.

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.ru/wix?keyword=bachna+ae+haseeno+movie++ganduworld
    • https://static.usrfiles.com/ugd/b8c837_c7b42ba8df5a4d57999f8d75c454bf6c.pdf
    • https://static.usrfiles.com/ugd/0c4177_f07e5edc0e934462b8b3328d48b4143f.pdf
    • https://static.usrfiles.com/ugd/a2d007_d874a293909c479e8f7c59ea80167774.pdf
    • https://cdn.shopify.com/s/files/1/0433/9145/1294/files/yaam_dngs_nedir.pdf
    • https://cdn.shopify.com/s/files/1/0450/9846/7480/files/verbal_ability_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/abide_with_me_ttbb.pdf
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/14781347611.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7629/files/bopufidaxifosel.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/bhangra_empire_2018_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/nazuwowekoladami.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/58381811695.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_off000043b0.bin
e07116f1532c3c881d8ca6d2288cce9386da60c4ce57d592643c77bd9c15b11b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43B0 5552 bytes
font_01_sfnt_off0000567d.bin
8210032c76151096620d4bcb6d9536dee269f637d7e5f122869c7fecdd2fec5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x567D 10716 bytes

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