Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1605e29ff400c7…

MALICIOUS

PDF

21.3 KB Created: 2019-04-30 02:38:38 +01:00 Authoring application: mPDF 5.7
MD5: 15ea8b1bf78707e39ca4beded6880f76 SHA-1: 00ca28fdf69d9c16970f63040beaec7d33e86206 SHA-256: 5c1605e29ff400c7355324ac4f7758179d9e84da092da9c56555c869e8580fdd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While the specific intent of the linked PDFs is unclear, the sheer volume and nature of the links suggest a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://unieoooq.linkpc.net/94e84e84e14e44e0/Sch-n-und-nackt-by-Red-Digital.pdf
    • http://unieoooq.linkpc.net/94e84e84e04e64e0/Nackt-in-meinem-Badezimmer-by-Red-Digital.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e94e6/Nackt-in-meinem-Schlafzimmer-by-Red-Digital.pdf
    • http://unieoooq.linkpc.net/94e84e84e04e54e7/Sofia-nackt-in-ihrem-Badezimmer-by-RedSkye-Digital.pdf
    • http://unieoooq.linkpc.net/94e84e84e04e44e3/Kamasutra-Bilder-Hei-e-Babes-Nackt-Strip-Nackt-F-r-Die-Kamera-by-Nicole-M-ller.pdf
    • http://unieoooq.linkpc.net/94e64e34e94e44e6/Beschlagnahmter-Film-Zombie-Die-Nacht-Der-Lebenden-Toten-the-Texas-Chainsaw-Massacre-Tanz-Der-Teufel-Hostel-2-Inside-Zombie-2-Das-Letzte-Haus-Links-Nackt-Unter-Kannibalen-Braindead-Spielen-Wir-Liebe-Nackt-Und-Zerfleischt-by-Source-Wikipedia.pdf
    • http://unieoooq.linkpc.net/14e84e34e64e64e7/Let-s-Get-Digital-How-To-Self-Publish-And-Why-You-Should-Let-s-Get-Digital-1-by-David-Gaughran.pdf
    • http://unieoooq.linkpc.net/94e94e34e54e54e9/Palermo-Guide-for-Digital-Nomads-City-Guides-for-Digital-Nomads-Book-1-by-Barbara-Riedel.pdf
    • http://unieoooq.linkpc.net/44e34e14e44e3/Multilingual-Digital-Marketing-How-to-Achieve-Your-Digital-Marketing-Objectives-and-Increase-Sales-by-Maria-Johnsen.pdf
    • http://unieoooq.linkpc.net/14e14e84e34e94e24e1/Advances-in-Digital-Forensics-V-Fifth-Ifip-Wg-11-9-International-Conference-on-Digital-Forensics-Orlando-Florida-USA-January-26-28-2009-Revised-Selected-Papers-by-Gilbert-Peterson.pdf
    • http://unieoooq.linkpc.net/14e14e84e34e94e24e0/Advances-in-Digital-Forensics-VI-Sixth-IFIP-WG-11-9-International-Conference-on-Digital-Forensics-Hong-Kong-China-January-4-6-2010-Revised-Selected-Papers-by-Kam-Pui-Chow.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e84e6/Nackt-und-stolz-by-Sam-Milton.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e24e5/Nackt-und-stolz-by-Alun.pdf
    • http://unieoooq.linkpc.net/94e84e74e84e94e4/NACKT-by-Thielen-Dieter.pdf
    • http://unieoooq.linkpc.net/94e84e84e04e64e1/NACKT-PERFEKTE-M-DCHEN-5-by-Key-Nudo.pdf
    • http://unieoooq.linkpc.net/94e84e74e94e04e2/Alarmstufe-Nackt-by-Johanna-Marthens.pdf
    • http://unieoooq.linkpc.net/94e84e84e04e54e9/nackt-in-ihrem-Bett-by-Sam-Milton.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e44e1/Nackt-f-r-Geld-by-Elena-Eschenbach.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e84e9/Jung-blond-und-nackt-by-Alun.pdf
    • http://unieoooq.linkpc.net/94e84e84e14e34e6/Nackt-und-Scharf-Sexgeschichten-by-Alf-B-rger.pdf

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