Malicious PDF — malware analysis report

Static analysis result for SHA-256 a156a8f15d8c9809…

MALICIOUS

PDF

19.1 KB Created: 2019-04-30 03:41:43 +01:00 Authoring application: mPDF 5.7
MD5: ef50e3b6c38fcaba51063695e8b964c5 SHA-1: 1b81e0feae08c21ae885f89d7fdec75f70dcd4a7 SHA-256: a156a8f15d8c9809a68d8e2450b7738a33db11bcfd9b6c137d3fc354fb8e28b8
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, all hosted on the same suspicious domain. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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.link
    • http://loaminoo.linkpc.net/1091094099098096091/The-Bonobos-Behavior-Ecology-and-Conservation-by-Takeshi-Furuichi.pdf
    • http://loaminoo.linkpc.net/1091095090090099099/The-Bonobos-Behavior-Ecology-and-Conservation-Developments-in-Primatology-Progress-and-Prospects-by-Takeshi-Furuichi.pdf
    • http://loaminoo.linkpc.net/9093094093097090/Moose-Behavior-Ecology-Conservation-by-Valerius-Geist.pdf
    • http://loaminoo.linkpc.net/1091094099099096090/Bonobos-Unique-in-Mind-Brain-and-Behavior-by-Brian-Hare.pdf
    • http://loaminoo.linkpc.net/1091094099098098092/Empty-Hands-Open-Arms-The-Race-to-Save-Bonobos-in-the-Congo-and-Make-Conservation-Go-Viral-by-Deni-Ellis-B-chard.pdf
    • http://loaminoo.linkpc.net/9095095099094097/Allee-Effects-in-Ecology-and-Conservation-by-Franck-Courchamp.pdf
    • http://loaminoo.linkpc.net/6099095097091090/Urban-Carnivores-Ecology-Conflict-and-Conservation-by-Stanley-D-Gehrt.pdf
    • http://loaminoo.linkpc.net/1090092090094090090/Ecology-and-Conservation-of-Tropical-Marine-Faunal-Communities-by-K-Venkataraman.pdf
    • http://loaminoo.linkpc.net/7090090097093097/Conservation-Ecology-Of-Forest-Invertebrates-Especially-Saproxylic-Beetles-In-Temoerate-Syccessional-Oak-Rich-Stands-by-Franc.pdf
    • http://loaminoo.linkpc.net/1090097092096095097/The-Ecology-of-Adaptive-Radiation-Oxford-Series-in-Ecology-amp-Evolution-by-Dolph-Schluter.pdf
    • http://loaminoo.linkpc.net/8093097091094095/Metric-Theories-of-Gravity-Perturbations-and-Conservation-Laws-Perturbations-and-Conservation-Laws-by-Bayram-Tekin.pdf
    • http://loaminoo.linkpc.net/3093096095094098/Suspicious-Behavior-Bad-Behavior-2-by-L-A-Witt.pdf
    • http://loaminoo.linkpc.net/1091094099099095092/Behavioural-Diversity-in-Chimpanzees-and-Bonobos-by-Marchant-Linda.pdf
    • http://loaminoo.linkpc.net/1091094099098096090/Behavioural-Diversity-in-Chimpanzees-and-Bonobos-by-Linda-Marchant.pdf
    • http://loaminoo.linkpc.net/1091094099098096093/Of-Bonobos-and-Men-A-Journey-to-the-Heart-of-the-Congo-by-Deni-Ellis-B-chard.pdf
    • http://loaminoo.linkpc.net/1091094099098098095/The-Real-Story-of-the-Bonobos-Who-Wore-Spectacles-by-Adela-Turin.pdf
    • http://loaminoo.linkpc.net/9097099090092096/The-Prince-of-Tennis-7-by-Takeshi-Konomi.pdf
    • http://loaminoo.linkpc.net/3090091093094094/Conservation-of-Shadows-by-Yoon-Ha-Lee.pdf
    • http://loaminoo.linkpc.net/2096096090097093/Conservation-of-Shadows-by-Yoon-Ha-Lee.pdf
    • http://loaminoo.linkpc.net/2091095098098095/Altered-Carbon-Takeshi-Kovacs-1-by-Richard-K-Morgan.pdf

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