Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa26ab637b9689ca…

MALICIOUS

PDF

16.7 KB Created: 2019-05-02 05:32:41 +01:00 Authoring application: mPDF 5.7
MD5: 5083217cd881d2fb457a60a139520a0e SHA-1: 03fe5a11f229c280ace18493f6655d4f87e9bba9 SHA-256: fa26ab637b9689caaac0e469e51cac8fb8acea59ab5557f968649c2cd239f7ff
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these URLs are marked as confirmed benign, the sheer volume and the nature of the heuristic suggest a potential attempt at SEO manipulation or a link farm designed to redirect users. No scripts were extracted from this sample. The attack pattern is inferred from the link farm heuristic and the presence of embedded URLs within the document body.

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/2093090092093/Polio-An-American-Story-by-David-M-Oshinsky.pdf
    • http://loaminoo.linkpc.net/3097090092098094/Worse-Than-Slavery-Parchman-Farm-and-the-Ordeal-of-Jim-Crow-Justice-by-David-M-Oshinsky.pdf
    • http://loaminoo.linkpc.net/2093098098095090/Bellevue-Three-Centuries-of-Medicine-and-Mayhem-at-America-s-Most-Storied-Hospital-by-David-Oshinsky.pdf
    • http://loaminoo.linkpc.net/4094092097095/Patenting-The-Sun-Polio-and-the-Salk-Vaccine-by-Jane-S-Smith.pdf
    • http://loaminoo.linkpc.net/2099095098092093/Labor-s-Untold-Story-The-Adventure-Story-of-the-Battles-Betrayals-and-Victories-of-American-Working-Men-and-Women-by-Richard-O-Boyer.pdf
    • http://loaminoo.linkpc.net/2092093097092098/In-The-Shadow-Of-Polio-A-Personal-And-Social-History-by-Kathryn-Black.pdf
    • http://loaminoo.linkpc.net/2093098090092092/Splendid-Solution-Jonas-Salk-and-the-Conquest-of-Polio-by-Jeffrey-Kluger.pdf
    • http://loaminoo.linkpc.net/2094098098096093/Rambo-and-Me-The-Story-Behind-the-Story-an-essay-by-David-Morrell.pdf
    • http://loaminoo.linkpc.net/9097092092099/American-Subversive-by-David-Goodwillie.pdf
    • http://loaminoo.linkpc.net/4097097095095095/American-Gangbang-A-Love-Story-by-Sam-Benjamin.pdf
    • http://loaminoo.linkpc.net/4095098093098094/An-American-Love-Story-by-Rona-Jaffe.pdf
    • http://loaminoo.linkpc.net/4096090093093098/Thank-You-and-Ok-An-American-Zen-Failure-in-Japan-by-David-Chadwick.pdf
    • http://loaminoo.linkpc.net/8098093092095/Mellon-An-American-Life-by-David-Cannadine.pdf
    • http://loaminoo.linkpc.net/4099094098097091/Comes-a-Painted-Horse-An-American-Story-of-Faith-by-G-M-Eichin.pdf
    • http://loaminoo.linkpc.net/3099098091098095/American-Nerd-The-Story-of-My-People-by-Benjamin-Nugent.pdf
    • http://loaminoo.linkpc.net/5092091092093095/The-Dutch-American-Farm-by-David-Steven-Cohen.pdf
    • http://loaminoo.linkpc.net/1092090090095090/The-American-Dream-HisStory-in-the-Making-by-David-Lee-Windecher.pdf
    • http://loaminoo.linkpc.net/1099094098097091/Benjamin-Lincoln-And-The-American-Revolution-by-David-B-Mattern.pdf
    • http://loaminoo.linkpc.net/7095092093094090/David-Mamet-and-American-Macho-by-Arthur-Holmberg.pdf
    • http://loaminoo.linkpc.net/1097092098099092/The-Myth-of-American-Religious-Freedom-by-David-Sehat.pdf
    • http://loaminoo.linkpc.net/2094098098096093/Ram

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