Malicious PDF — malware analysis report

Static analysis result for SHA-256 df8a44d11ad3d994…

MALICIOUS

PDF

18.0 KB Created: 2019-05-03 06:00:26 +01:00 Authoring application: mPDF 5.7
MD5: f4272dea223d525c186bc4cb182a3ce1 SHA-1: 0baa603d420822c8ebf66ded7512d89171c618c9 SHA-256: df8a44d11ad3d9947d976c99185dadefc58a943fcef2baf6d28838858b50046c
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to a single domain, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely part of an SEO poisoning or link farm strategy to direct users to potentially malicious content or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

Heuristics 2

  • 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 http://cefasfese.4pu.com/4736731735737733/The-Coal-Black-Asphalt-Tomb-Berger-and-Mitry-10-by-David-Handler.pdf
    • http://cefasfese.4pu.com/7730731730730732/The-Burnt-Orange-Sunrise-Berger-and-Mitry-4-by-David-Handler.pdf
    • http://cefasfese.4pu.com/7730731730730733/The-Sour-Cherry-Surprise-Berger-and-Mitry-6-by-David-Handler.pdf
    • http://cefasfese.4pu.com/7730731730734737/The-Sweet-Golden-Parachute-Berger-and-Mitry-5-by-David-Handler.pdf
    • http://cefasfese.4pu.com/7730731730730731/The-Bright-Silver-Star-Berger-and-Mitry-3-by-David-Handler.pdf
    • http://cefasfese.4pu.com/7730731731732731/Lavender-Lane-Lothario-Berger-and-Mitry-11-by-David-Handler.pdf
    • http://cefasfese.4pu.com/5731738730730733/Coal-Black-Heart-The-Story-of-Coal-and-Lives-it-Ruled-by-John-Demont.pdf
    • http://cefasfese.4pu.com/4735736738735735/Twisted-Asphalt-Asphalt-Outlaw-1-by-Blue-Remy.pdf
    • http://cefasfese.4pu.com/6736736733732734/Coal-Hard-Habitat-The-Travails-of-a-Coal-Miner-s-Son-by-Joanne-Leila-Smith.pdf
    • http://cefasfese.4pu.com/7736733730737737/The-Girl-with-Kaleidoscope-Eyes-Stewart-Hoag-Mystery-9-by-David-Handler.pdf
    • http://cefasfese.4pu.com/1738735735739734/The-Buffalo-Creek-Disaster-How-the-Survivors-of-One-of-the-Worst-Disasters-in-Coal-Mining-History-Brought-Suit-Against-the-Coal-Company--And-Won-by-Gerald-M-Stern.pdf
    • http://cefasfese.4pu.com/2734733734739734/Finding-Balance-Task-Force-Gaea-1-by-David-Berger.pdf
    • http://cefasfese.4pu.com/6737737735731734/Maigrir-avec-la-lune-Faites-fondre-vos-kilos-superflus-en-suivant-les-cycles-lunaires-de-Carole-Berger-by-Carole-Berger.pdf
    • http://cefasfese.4pu.com/7735730739733731/Lara-Croft-Tomb-Raider-The-Man-of-Bronze-Lara-Croft-Tomb-Raider-3-by-James-Alan-Gardner.pdf
    • http://cefasfese.4pu.com/5730739733735737/Asphalt-by-Rebekah-Remington.pdf
    • http://cefasfese.4pu.com/3730735731730730/Scar-Asphalt-Gods-MC-1-by-Morgan-Jane-Mitchell.pdf
    • http://cefasfese.4pu.com/4735736733730738/Kings-of-Asphalt-Club-Chrome-1-by-Alexx-Andria.pdf
    • http://cefasfese.4pu.com/3736730730738731/Sunrise-Asphalt-Gods-MC-4-by-Morgan-Jane-Mitchell.pdf
    • http://cefasfese.4pu.com/7730735734739730/Hot-Mix-Asphalt-Paving-Handbook-2000-by-Rona-Briere.pdf
    • http://cefasfese.4pu.com/3735739736731735/Hell-on-Heelz-Asphalt-Gods-MC-3-by-Morgan-Jane-Mitchell.pdf
    • http://cefasfese.4pu.com/1738735735739734/The-Buffalo-Creek-Disaster-How-the-Survivors-of-One-of-the-Worst-Disasters-in-Coal-Mining-History-Brought-Suit-Against-the-Coal-Company--And-Won-by-G