Malicious PDF — malware analysis report

Static analysis result for SHA-256 b733afb2d8236ee7…

MALICIOUS

PDF

14.2 KB Created: 2019-04-30 23:22:33 +01:00 Authoring application: mPDF 5.7
MD5: 2313c82488ee25d2195576337155c673 SHA-1: 07607e5d2653f872db85512c9ff0368b19af7d67 SHA-256: b733afb2d8236ee79e71b23d947940bf63c86d42bf4197cf687b669d3dd6070d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, hosted on the dynamic DNS domain loaminoo.linkpc.net. This is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/2095094095096090/Charred-Heart-Heart-of-Fire-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/3091090093093094/Charred-Tears-Heart-of-Fire-2-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1094098098097098/Trial-by-Heart-Trial-Series-Book-4-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1098093097094090/Mind-Caf-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1098093099090095/The-Warlord-s-Secret-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/7091097095091090/Heart-Chakra-Cleansing-A-Guide-to-Heart-Chakra-Meditation-and-Heart-Chakra-Healing-by-Priya-Chevallier.pdf
    • http://loaminoo.linkpc.net/5097097095090/Semper-Mine-Sons-of-War-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/4091091099093098/Autumn-Storm-The-Witchling-2-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/4095090095098097/Severed-Starwalkers-Serial-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1094097094092099/Autumn-Storm-The-Witchling-2-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/3090090098092098/East-History-Interrupted-2-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/2095099090096092/Revealed-Starwalkers-Serial-4-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/2098095099099/Black-Moon-Draw-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/2094098099095093/The-Underworld-Rhyn-Eternal-4-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/2097093097090090/Twisted-Fate-Rhyn-Eternal-5-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1098093099090099/Kiera-s-Moon-The-Anshan-Saga-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/1094097094090090/Kiera-s-Moon-The-Anshan-Saga-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/4096097096093091/Hear-No-Hidden-Evil-Trilogy-1-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/7095099094097/Heart-of-Fire-by-Linda-Howard.pdf
    • http://loaminoo.linkpc.net/1099090098091090/Heart-of-Fire-by-Violet-Jackson.pdf
    • http://loaminoo.linkpc.net/3090090098092098/East-History-Interrupted-2

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