Malicious PDF — malware analysis report

Static analysis result for SHA-256 a94a7d2eeed9c926…

MALICIOUS

PDF

15.4 KB Created: 2019-04-29 23:40:30 +01:00 Authoring application: mPDF 5.7
MD5: bbd504cdb450309ff69b4bfe8825be6d SHA-1: ae693c8636e08d1aa2ef87a8832c1b7b7ff0bd12 SHA-256: a94a7d2eeed9c926030a1537206c5079ffc040f0c8c125b208b754494c02c884
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links and the heuristic firing indicate a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://loaminoo.linkpc.net/1090091093097096097/King-Harald-s-Heist-King-Harald-Mysteries-2-by-Richard-Audry.pdf
    • http://loaminoo.linkpc.net/1090091093097096096/The-Karma-of-King-Harald-King-Harald-Mysteries-1-by-Richard-Audry.pdf
    • http://loaminoo.linkpc.net/1090096094095094094/Sternenstaub---DE-by-Eckhard-Block.pdf
    • http://loaminoo.linkpc.net/1090096094095097096/Katzendreck-und-Sternenstaub-by-Roland-H-Palm.pdf
    • http://loaminoo.linkpc.net/1090096094096096099/-Sternenstaub-Ein-spiritueller-Lebensratgeber-by-Monika-Kunkel.pdf
    • http://loaminoo.linkpc.net/1090096094096096098/Wenn-Sternenstaub-und-Nebelschleier-miteinander-tanzen-by-Lisa-Sinnpflug.pdf
    • http://loaminoo.linkpc.net/1090096094097095090/Sternenstaub-Selbstliebe-und-innere-Kraft-hervorlocken-by-Gabriele-Klimt.pdf
    • http://loaminoo.linkpc.net/1090096094097095092/Joe-und-die-Carbon-Connection-Vom-Sternenstaub-zum-Ernst-des-Lebens-by-Martin-Deggelmann.pdf
    • http://loaminoo.linkpc.net/1090096094097094095/Bibi-Blocksberg---Der-magische-Sternenstaub-2-lesen-1-Buch-by-Luise-Holthausen.pdf
    • http://loaminoo.linkpc.net/1090096094097095097/Eine-Handvoll-Sternenstaub-Was-das-Universum-ber-das-Gl-ck-des-Daseins-erz-hlt-by-Lorenz-Marti.pdf
    • http://loaminoo.linkpc.net/1090096096091096096/Zerbrochene-Illusionen-by-H-W-Sch-fer.pdf
    • http://loaminoo.linkpc.net/2095099096099/The-Best-of-Subterranean-by-William-Schafer.pdf
    • http://loaminoo.linkpc.net/8099091093091092/Rituale-und-Ritualisierungenglish-by-Alfred-Sch-fer.pdf
    • http://loaminoo.linkpc.net/1091098096097097096/BUDDHA-SPR-CHE-by-Kl-ber-Sch-fer.pdf
    • http://loaminoo.linkpc.net/9094095094095097/An-Almighty-Conspiracy-by-Fred-Sch-fer.pdf
    • http://loaminoo.linkpc.net/8096099094093098/Die-Lebenssituation-Alleinstehender-Frauen-by-Ingo-Schafer.pdf
    • http://loaminoo.linkpc.net/9094095093090092/The-Ghost-of-Schafer-Meadows-by-Beth-Hodder.pdf
    • http://loaminoo.linkpc.net/1090096095095095092/Abfallentsorgung-in-Gewerblichen-Kuchen-by-Ellen-Schafer.pdf
    • http://loaminoo.linkpc.net/9094095094091096/Subterranean-Magazine-Summer-2012-by-William-Schafer.pdf
    • http://loaminoo.linkpc.net/2092091095098094/Subterranean-Magazine-Summer-2011-by-William-Schafer.pdf
    • http://loaminoo.linkpc.net/1090096094097095097/Eine-Handvoll-Sternenstaub-Was-das-Universum-ber-das-Gl-ck-des-Daseins-erz-hlt-by-

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