Malicious PDF — malware analysis report

Static analysis result for SHA-256 081ddf0c70cab00e…

MALICIOUS

PDF

18.1 KB Created: 2019-05-02 07:18:32 +01:00 Authoring application: mPDF 5.7
MD5: fdfa8f156172d3d9ab8b75292857e9f9 SHA-1: d2d52709acb5873587cf1e88414758dd2d53baa1 SHA-256: 081ddf0c70cab00e49a54bc13bb63228bc5f3e446f5d1d58d2f486b165d8736f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or direct users to potentially malicious websites. No scripts were extracted, but the link farm behavior is indicative of a malicious intent to redirect users. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

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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