Malicious PDF — malware analysis report

Static analysis result for SHA-256 79665af9acc6e694…

MALICIOUS

PDF

18.1 KB Created: 2019-05-02 07:18:10 +01:00 Authoring application: mPDF 5.7
MD5: 583593c5781f18e17dd1e2ac45944664 SHA-1: a4c917b8d5d216bcf06cc0117baf1c7c7d6fe332 SHA-256: 79665af9acc6e694e06131c737e4c65d6e551f3484f598e9e696be3a793f44ab
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files hosted on a dynamic DNS domain. This behavior is indicative of a link farm or SEO spam tactic, potentially used to distribute malware or drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/6091093097092093/Sakura-tenshi-no-hikari---Episode-1-by-Jonathan-Lawrence.pdf
    • http://loaminoo.linkpc.net/6091093099096098/Sakura-tenshi-no-hikari---Episode-10-by-Jonathan-Lawrence.pdf
    • http://loaminoo.linkpc.net/7098093090090095/High-Speed-Rail-in-Japan-Shinkansen-Hikari-Kodama-Nozomi-Ch-Shinkansen-Hayabusa-Narita-Shinkansen-Asama-Tsubame-Akita-Relay-Sakura-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/6091093096090095/Hikari-No-Densetsu-Tome-1-Legend-Of-Hikari-by-Izumi-As-.pdf
    • http://loaminoo.linkpc.net/9096092092092093/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-7-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/9096092092091098/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-3-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/9096092092096093/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-9-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/9096092092092091/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-6-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/4095095090090095/Cardcaptor-Sakura-Master-of-the-Clow-Vol-5-Cardcaptor-Sakura-11-by-CLAMP.pdf
    • http://loaminoo.linkpc.net/4095094099090091/Cardcaptor-Sakura-Master-of-the-Clow-Vol-4-Cardcaptor-Sakura-10-by-CLAMP.pdf
    • http://loaminoo.linkpc.net/8094091098093090/Sons-and-Lovers-1913-Novel-by-D-H-Lawrence-100-Best-Novels-of-the-20th-Century-Include-Women-in-Love-1920-Novel-By-D-H-Lawrence-by-D-H-Lawrence.pdf
    • http://loaminoo.linkpc.net/8095096092099098/Tenshi-No-jiento-by-Asahi-Shima.pdf
    • http://loaminoo.linkpc.net/1097092099099092/The-Sky-Crawlers-Episode-2-Episode-3-by-Hiroshi-Mori.pdf
    • http://loaminoo.linkpc.net/4093092094095093/The-Golden-Warrior-The-Life-and-Legend-of-Lawrence-of-Arabia-by-Lawrence-James.pdf
    • http://loaminoo.linkpc.net/1090093099090092098/THE-PLUMED-SERPENT-by-D-H-Lawrence-author-of-Sons-and-Lovers-The-Rainbow-Women-in-Love-and-Lady-Chatterley-s-Lover-Annotated-by-D-H-Lawrence.pdf
    • http://loaminoo.linkpc.net/6091093098091096/Hikari-No-Densetsu-by-Jesse-Russell.pdf
    • http://loaminoo.linkpc.net/6091093098099091/-Kawa-no-Hikari-by-Hisaki-Matsuura.pdf
    • http://loaminoo.linkpc.net/6091093098099090/Hikari-No-Tabibito-by-Gene-Brewer.pdf
    • http://loaminoo.linkpc.net/6091093097091094/Hikari-no-densetsu-Tome-4-by-Izumi-As-.pdf
    • http://loaminoo.linkpc.net/8090096094095098/Non-Compos-Mentis-by-Hikari-ni-Michita-Sora.pdf

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