Malicious PDF — malware analysis report

Static analysis result for SHA-256 3acd76cb68e9ad95…

MALICIOUS

PDF

16.1 KB Created: 2019-05-02 01:32:39 +01:00 Authoring application: mPDF 5.7
MD5: 2c68125ab1fd5d463666aeb22163243c SHA-1: e11c0729e467e38cb8378c90e7a18d7c37eb44ed SHA-256: 3acd76cb68e9ad9532ae1eab25361094ade0c918043653ca252c5b8219bd48ff
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links and the ML classification indicate a malicious intent, likely to direct users to malicious sites or for SEO poisoning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/3094098098092095/Half-a-War-Shattered-Sea-3-by-Joe-Abercrombie.pdf
    • http://loaminoo.linkpc.net/1092093093/Half-a-War-Shattered-Sea-3-by-Joe-Abercrombie.pdf
    • http://loaminoo.linkpc.net/3096091095093090/Half-a-King-Shattered-Sea-1-by-Joe-Abercrombie.pdf
    • http://loaminoo.linkpc.net/6090091090096/Half-the-World-Shattered-Sea-2-by-Joe-Abercrombie.pdf
    • http://loaminoo.linkpc.net/2090097091098098/The-Collected-Joe-Abercrombie-The-Blade-Itself-Before-they-are-Hanged-Last-Argument-of-Kings-Best-Served-Cold-The-Heroes-Red-Country-by-Joe-Abercrombie.pdf
    • http://loaminoo.linkpc.net/6091099090095090/Half-and-Half-Writers-on-Growing-Up-Biracial-Bicultural-by-Claudine-O-39-Hearn.pdf
    • http://loaminoo.linkpc.net/2092096094093098/Half-Heaven-Half-Heartache-Discovering-the-Transformative-Potential-in-Women-s-Popular-Fiction-by-Linda-Hilton.pdf
    • http://loaminoo.linkpc.net/4092090091099090/Shattered-Shattered-Hearts-1-by-Nicole-Banks.pdf
    • http://loaminoo.linkpc.net/3097096096098/Shattered-Shattered-Hearts-1-by-Nicole-Banks.pdf
    • http://loaminoo.linkpc.net/8096090099091/Half-Lost-The-Half-Bad-Trilogy-3-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/8091098094097/Half-Wild-The-Half-Bad-Trilogy-2-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/4093093/Half-Wild-The-Half-Bad-Trilogy-2-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/1094098092094094/Half-Wild-The-Half-Bad-Trilogy-2-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/2091094091/Half-Truths-The-Half-Bad-Trilogy-0-6-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/4094097092099098/Half-Bloods-Rising-Half-Elf-Chronicles-1-by-J-T-Williams.pdf
    • http://loaminoo.linkpc.net/9099097091/Half-Bad-The-Half-Bad-Trilogy-1-by-Sally-Green.pdf
    • http://loaminoo.linkpc.net/2098093093099097/Shattered-The-Shattered-Saga-1-by-R-K-Garmon.pdf
    • http://loaminoo.linkpc.net/4098093097091099/Shattered-Shattered-1-by-Diana-Nixon.pdf
    • http://loaminoo.linkpc.net/1094094098094097/The-Girl-On-The-Half-Shell-The-Half-Shell-Series-1-by-Susan-Ward.pdf
    • http://loaminoo.linkpc.net/3091094099096097/Shattered-Glass-Shattered-Glass-1-by-Dani-Alexander.pdf

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