Malicious PDF — malware analysis report

Static analysis result for SHA-256 a244bd92df2154e8…

MALICIOUS

PDF

22.5 KB Created: 2019-04-30 04:50:27 +01:00 Authoring application: mPDF 5.7
MD5: 925bdd8ef4822b30d9e5fbb07a8c4815 SHA-1: 381a3883358c377e02f3c193b9b58b15bc0be130 SHA-256: a244bd92df2154e866b87259acca2489428def8e70379559100c4c9b07baadd3
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, many of which are hosted on the dynamic DNS domain 'loaminoo.linkpc.net'. This suggests a link farm or redirection tactic to potentially distribute malicious content or drive traffic. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the lure beyond the link farm. The primary attack pattern observed is the creation of a link farm to obscure the ultimate destination or purpose.

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
    • http://loaminoo.linkpc.net/7091098099099093/Freddie-the-Frog-and-the-Bass-Clef-Monster-With-CD-Audio-by-Sharon-Burch.pdf
    • http://loaminoo.linkpc.net/7091098099099094/The-Bass-Clef-Learn-and-Practice-The-Notes-of-The-Bass-Clef-The-Clefs-Volume-2-by-Steve-Tirpak.pdf
    • http://loaminoo.linkpc.net/7091098099094096/Beyond-The-Bass-Clef-by-Tony-Levin.pdf
    • http://loaminoo.linkpc.net/7091098099096092/The-Real-Book---Volume-I-Bass-Clef-Edition-by-Hal-Leonard-Publishing-Company.pdf
    • http://loaminoo.linkpc.net/5091090091094096/The-Care-of-Goats-and-Ghosts-Maggie-McGill-Mystery-8-by-Sharon-Burch-Toner.pdf
    • http://loaminoo.linkpc.net/1091095096090093097/Rhythmic-Etudes-STEREOGRAMS-for-Bass-Clef-Instruments-Volume-I-by-David-Brubeck-by-David-Brubeck.pdf
    • http://loaminoo.linkpc.net/7091098099096097/Charlie-Parker---Omnibook-For-Bass-Clef-Instruments-by-Charlie-Parker.pdf
    • http://loaminoo.linkpc.net/7091098099099097/Standard-of-Excellence-Book-1-Comprehensive-Band-Method-Book-1-Trombone-Bass-Clef-Standard-of-Excellence-Series-by-Bruce-Pearson.pdf
    • http://loaminoo.linkpc.net/4095094096093093/Frog-Hog-Valen-and-Hutch-A-Frog-Hog-Novella-Book-1-by-Rachel-Robinson.pdf
    • http://loaminoo.linkpc.net/8096094099092095/The-Art-of-Walking-Bass-A-Method-for-Acoustic-or-Electric-Bass-With-CD-by-Bob-Magnusson.pdf
    • http://loaminoo.linkpc.net/1090092093097098095/Advanced-Bass-Fishing-Skills-Best-Lures-Techniques-and-Presentations-Ultimate-Bass-Fishing-Library-Book-1-by-Dave-Precht.pdf
    • http://loaminoo.linkpc.net/4091098092095090/Sgt-Frog-Vol-1-Sgt-Frog-1-by-Mine-Yoshizaki.pdf
    • http://loaminoo.linkpc.net/1090094090092095/Frog-and-Toad-All-Year-Frog-and-Toad-3-by-Arnold-Lobel.pdf
    • http://loaminoo.linkpc.net/9094094093094099/Der-General-Bass-in-Der-Composition-Oder-Neue-Und-Gr-ndliche-Anweisung-Wie-Ein-Music-Liebender-Mit-Besonderm-Vortheil-Durch-Die-Principia-Der-Composition-Nicht-Allein-Den-General-Bass-Im-Kirchen-Cammer-Und-Theatralischen-Styl-Vollkommen-Und-in-Alt-by-Johann-David-Heinichen.pdf
    • http://loaminoo.linkpc.net/4090090099099096/Alex-Finch-Monster-Hunter-The-Monster-Files-1-by-Cate-Dean.pdf
    • http://loaminoo.linkpc.net/2099098096090090/Movie-Monsters-Monster-Make-Up-amp-Monster-Shows-To-Put-On-by-Alan-Ormsby.pdf
    • http://loaminoo.linkpc.net/6098097091098095/Monster-Graphic-Novels-Monster-Mess-by-Lewis-Trondheim.pdf
    • http://loaminoo.linkpc.net/1099096091095093/The-Frog-Princess-Tales-of-the-Frog-Princess-1-by-E-D-Baker.pdf
    • http://loaminoo.linkpc.net/2094090091099097/Monster-High-My-Monster-Life-by-Parragon-Publishing.pdf
    • http://loaminoo.linkpc.net/1091097099090095/Monster-Makers-Monster-Chronicles-1-by-C-V-Cook.pdf