Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb5cee8f4690444…

MALICIOUS

PDF

34.7 KB Created: 2020-09-10 00:28:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 005c01535be38636a3ce92a984b3ea7f SHA-1: 0c1ca8a8a8649f10ebbe62b07fd03f9c455efde4 SHA-256: bbb5cee8f4690444d3068116935f7300441223917235f00d595a9cbb2cca1990
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/wix?keyword=fate+extella+link+multiplayer+guide. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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=fate+extella+link+multiplayer+guide
    • http://files.newstone-intl.com/uploads/1/3/1/4/131453894/2294116.pdf
    • http://japixala.candacedowning.com/uploads/1/3/0/7/130739860/f6c6270efff.pdf
    • http://files.practicallywholesomerd.com/uploads/1/3/2/7/132741433/zogepaka_bukeluditagu.pdf
    • http://luwux.riderwriter.co.uk/uploads/1/3/0/8/130873782/9007443.pdf
    • http://xewanego.hrc-xray.com/uploads/1/3/1/4/131454731/1342495.pdf
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/wozivirapesorumewosamab.pdf
    • https://cdn.shopify.com/s/files/1/0428/7086/6087/files/chrome_for_win_10.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/case_study_master_thesis.pdf
    • https://static.usrfiles.com/ugd/bc79a4_2891aeb3ebdc4c8d8738f5af08b3aabb.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_db3a3798472a44f8b3b7ff230fbe928e.pdf
    • https://static.usrfiles.com/ugd/1b8612_d862afd2bfd74f5ba38d381722375ac8.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_cdeb9c8c2f0a4033a50acef7027c4201.pdf
    • https://static.usrfiles.com/ugd/7d21c0_76169dc7a1794001bfa624601b9cd5f9.pdf
    • https://static.usrfiles.com/ugd/43d598_991afaafef194500853ff1716aea59f3.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_off00004b59.bin
39932892de63fdf3ef269a82c27ed8e16bfa56454a3a9fd574fab5de0d3dd91c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B59 5292 bytes
font_01_sfnt_off00005d54.bin
1d810b4d8517bdd68e1ea0f0ae3c5794f6fdb9f0dc4e5cfe96fd8ccf20c05f90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D54 9580 bytes

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