Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27cd0276bfd79be…

MALICIOUS

PDF

20.7 KB Created: 2019-04-30 04:34:49 +01:00 Authoring application: mPDF 5.7
MD5: 2b1540e07dcade844070ea30d9a64542 SHA-1: cd72ec5af712237bd52e5fb702e119b40170707e SHA-256: c27cd0276bfd79bebc79b12380c17337f50a295e0f618d4390e5235c6b6cb69f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF was flagged by a critical heuristic for containing a mass external link farm, with 25 links detected. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the structure and embedded URLs suggest an attempt to manipulate search engine results or redirect users to potentially harmful content hosted on loaminoo.linkpc.net.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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/7092094091097095/The-Little-Book-of-Dickie-Bird-by-Dickie-Bird.pdf
    • http://loaminoo.linkpc.net/7092094091092091/80-Not-Out-by-Dickie-Bird.pdf
    • http://loaminoo.linkpc.net/7092094091090097/Dickie-Dick-Dickens---Dickie-gegen-Chicago-by-Rolf-A-Becker.pdf
    • http://loaminoo.linkpc.net/7092094091097090/Dirty-Dickie-s-Dynamite-Dick-Book-I-Dickie-at-18-by-V-J-Leone.pdf
    • http://loaminoo.linkpc.net/7097097095096092/Muppet---Illustrated-Characters-Abbot-Alice-Andy-the-Armadillo-Anson-Anderson-Arabs-Ariel-Aunt-Agnes-Snuffleupagus-Aunt-Edna-Aunt-Sue-Baby-Monster-Babyface-Magee-Bean-Bunny-Becca-Bird-Big-Boy-Bigfoot-Billy-Bird-Buddy-Bird-Cabbages-Calvi-by-Source-Wikia.pdf
    • http://loaminoo.linkpc.net/4095091099096/May-Bird-Among-the-Stars-May-Bird-2-by-Jodi-Lynn-Anderson.pdf
    • http://loaminoo.linkpc.net/5094090090096097/Fly-High-With-Birds-The-Best-Book-Guide-On-Bird-Watching-Including-All-The-Things-You-Need-To-Know-About-Birding-Including-Bird-Watching-Scopes-The-Different-Birds-Bird-Feeders-and-Backyard-Birding-Why-Watch-Birds-And-Where-To-Find-Them-For-A-Rewardin-by-Mains.pdf
    • http://loaminoo.linkpc.net/5091092093090/Bird-The-Bird-Trilogy-1-by-Tami-Egonu.pdf
    • http://loaminoo.linkpc.net/2094091096095099/Bird-The-Bird-Trilogy-1-by-Tami-Egonu.pdf
    • http://loaminoo.linkpc.net/2098091093094093/Bird-After-Bird-by-Leslea-Tash.pdf
    • http://loaminoo.linkpc.net/3091096098092092/Like-a-Bird-Like-a-Bird-1-by-Laurie-Varga.pdf
    • http://loaminoo.linkpc.net/1099095094098092/The-Bird-and-the-Beetle-The-Academy-Ghost-Bird-and-Scarab-Beetle-Series-Starters-by-C-L-Stone.pdf
    • http://loaminoo.linkpc.net/7092094091096096/Art-Value-by-George-Dickie.pdf
    • http://loaminoo.linkpc.net/7092093098096095/Dickie-by-Sheelagh-Kelly.pdf
    • http://loaminoo.linkpc.net/7092093099091091/Phillip-and-Dickie-by-Phil-Stokes.pdf
    • http://loaminoo.linkpc.net/7092094091097094/Are-You-Really-Dickie-Boy-by-Mary-Jean-Pollard.pdf
    • http://loaminoo.linkpc.net/7092093099092091/Aesthetics-A-Critical-Anthology-by-George-Dickie.pdf
    • http://loaminoo.linkpc.net/8093090093099098/How-Refined-Sugar-Is-Killing-Us-by-Dickie-Paria.pdf
    • http://loaminoo.linkpc.net/7092094092091092/Trixie-Dickie-Dollie-by-Jean-de-Martyn.pdf
    • http://loaminoo.linkpc.net/7092094091097092/Inside-The-Foreign-Office-by-John-Dickie.pdf
    • http://loaminoo.linkpc.net/5094090090096097/Fly-High-With-Birds-The-Best-Book-Guide-On-Bird-Watching-Including-All-The-Things-You-Need-To-Know-About-Birding-Including-Bird-Watching-Scopes-The-Different-Birds-Bird-F