Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b133aea77bfa72…

MALICIOUS

PDF

15.8 KB Created: 2019-05-02 01:02:11 +01:00 Authoring application: mPDF 5.7
MD5: 7ee0043a35168bd48ac6a4bdd1a8e9ad SHA-1: 6314f0114f838f0b021dc96ba76a53197f615346 SHA-256: c0b133aea77bfa7279d85a66733171b2b8fe2cc69b55254fff96c8e145a9c31e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a link farm with 21 external links, primarily pointing to PDF documents hosted on loaminoo.linkpc.net. This technique is often used to distribute malicious content or to manipulate search engine rankings. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload. The primary attack pattern observed is the distribution of a large number of links.

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/6096093092099095/--Sakura-no-Ame-Bokura-wa-Koko-de-Aou-by-Hitomi-Amamiya.pdf
    • http://loaminoo.linkpc.net/9096092092092091/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-6-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/9096092092091098/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-3-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/9096092092092093/Sakura-Hime-The-Legend-of-Princess-Sakura-Vol-7-by-Arina-Tanemura.pdf
    • http://loaminoo.linkpc.net/4095094099090091/Cardcaptor-Sakura-Master-of-the-Clow-Vol-4-Cardcaptor-Sakura-10-by-CLAMP.pdf
    • http://loaminoo.linkpc.net/4095095090090095/Cardcaptor-Sakura-Master-of-the-Clow-Vol-5-Cardcaptor-Sakura-11-by-CLAMP.pdf
    • http://loaminoo.linkpc.net/6096093092099093/Bento-Japanese-food-Typical-japanese-box-for-lunch-Japanese-cooking-and-japanese-food-by-Hitomi-nakamura-Book-2-by-Hitomi-Nakamura.pdf
    • http://loaminoo.linkpc.net/2098094090097093/--Bokura-no-Mitsudomoe-Sensou-by-SHOOWA.pdf
    • http://loaminoo.linkpc.net/7091090098096090/--Bokura-no-Negai-by-Kotetsuko-Yamamoto.pdf
    • http://loaminoo.linkpc.net/2095099092092/Koko-by-Peter-Straub.pdf
    • http://loaminoo.linkpc.net/3090092095099092/Cooking-with-Sin-by-Koko-Brown.pdf
    • http://loaminoo.linkpc.net/2099093090098092/To-the-sacred-valley-with-Koko-by-Ayyappan-Nair.pdf
    • http://loaminoo.linkpc.net/1097097093097092/Player-s-Ultimatum-Hands-Off-Series-1-by-Koko-Brown.pdf
    • http://loaminoo.linkpc.net/3091090093090098/At-Home-Between-the-Devil-and-the-Deep-Blue-Sky-by-KoKo-Nervelli.pdf
    • http://loaminoo.linkpc.net/9096090095093097/Ginpatsuki---Izumi-Katsuhisa-to-Aso-Koko-Kendo-bu-no-Kiseki-by-Sakaguchi-Takushi.pdf
    • http://loaminoo.linkpc.net/5091097094095098/The-Wet-Nose-of-Danger-Rex-Koko-Private-Clown-Book-3-by-James-Finn-Garner.pdf
    • http://loaminoo.linkpc.net/6096093092090096/Ten-No-Hitomi-Y-nen-2-by-Kenjir-Haitani.pdf
    • http://loaminoo.linkpc.net/6096093091098093/Romansu-No-Hitomi-by-Tami-Takada.pdf
    • http://loaminoo.linkpc.net/6096093092091094/Mystery-of-the-Missing-Lover-by-Hitomi-Akino.pdf
    • http://loaminoo.linkpc.net/7091090098096090/--Bokura-no-Negai-by-Ko

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