Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef754186e9284f55…

MALICIOUS

PDF

51.6 KB Created: 2020-08-31 10:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72d0636398e5b1e75a30f6aae8647b9f SHA-1: 9419ed866c3342d2940511952282da0938089959 SHA-256: ef754186e9284f55b8dcc759acd4e3bf74f090dfc4a518ae7f70b3dab7c6f061
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'quimica pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL identified is ttraff.ru, which is known for redirecting to further malicious content.

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=temas+basicos+de+quimica+pdf
    • https://static.usrfiles.com/ugd/430cb2_6ec0f9d0b6154c8a9d6442f04e7ee2e4.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_adcee7f967fd44f1bc057224e330a9d9.pdf
    • https://static.usrfiles.com/ugd/73c254_7e628f1a268f41eea9b0faaf4e7979ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a1696d41ac94ba9a488f2d11346b43b.pdf
    • https://static.usrfiles.com/ugd/19103d_f3e5a4e5667648a885dd2675a9c4d289.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1496/files/jexesededu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/fugalewebobaxijaridi.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_08fc55d797cb42cea6254e80124489fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_ffee06910d8b4c089bd896cc3b6c75a7.pdf
    • https://static.usrfiles.com/ugd/3615fb_bcd45c669ff54004b049781df4d35c5f.pdf
    • https://static.usrfiles.com/ugd/b8c837_58c5dc89520f4dbfbbdb42a4cf89cece.pdf
    • https://static.usrfiles.com/ugd/b8c837_82286ee8293442c8a336b04116693c48.pdf
    • https://static.usrfiles.com/ugd/16a96a_bf435a5434ec4c0cbdf0f92cde841cec.pdf
    • https://static.usrfiles.com/ugd/b8c837_00ac2152761240e398918aa13ab26671.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_off00006f9f.bin
7693a1ab56e4f2f99fa96a16ef09cb43ec2e8e951a81133522f333189a5ebe48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9F 5388 bytes
font_01_sfnt_off000081d2.bin
17344bd875b1ad0b770f5d927dc18cb5c92765b39ed2187c816e39c83aa7add2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D2 12496 bytes
font_02_sfnt_off0000a98b.bin
3befbdda52a6c30d0c52f024a5a18696ca47320903dc1030892ec78d1dd26e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA98B 16436 bytes

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