Malicious PDF — malware analysis report

Static analysis result for SHA-256 beadeb8fcb7b3ff2…

MALICIOUS

PDF

18.1 KB Created: 2019-04-30 05:43:07 +01:00 Authoring application: mPDF 5.7
MD5: f370071516b8321c20c415390dfdccc2 SHA-1: 2435c39a2096cfaa28f944068444e3f0f15cd666 SHA-256: beadeb8fcb7b3ff2fc1a803ccb54f8ea5f24f4b6a02144a1f60c5bd5358465fb
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, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs extracted are currently marked as benign, the sheer volume and structure suggest a malicious intent, likely for SEO manipulation or to distribute further payloads. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates maliciousness. No scripts were extracted from this sample.

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/4091096091099090/The-Call-of-Cthulhu-and-Other-Weird-Stories-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/1091094090094093095/The-Call-of-the-Cthulhu-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/6091094096091092/The-Call-of-Cthulhu---Illustrated-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/8092094092092097/Littlest-Lovecraft-The-Call-of-Cthulhu-by-Tro-Rex.pdf
    • http://loaminoo.linkpc.net/5096096097092093/Call-of-Cthulhu-Fantasy-Roleplaying-in-the-Worlds-of-H-P-Lovecraft-by-Sandy-Petersen.pdf
    • http://loaminoo.linkpc.net/9099090092095092/The-Art-of-H-P-Lovecraft-s-the-Cthulhu-Mythos-by-Pat-Harrigan.pdf
    • http://loaminoo.linkpc.net/3090097097098097/The-Children-of-Cthulhu-Chilling-New-Tales-Inspired-by-H-P-Lovecraft-by-John-Pelan.pdf
    • http://loaminoo.linkpc.net/1095095094094098/The-Complete-Works-of-H-P-Lovecraft-Volume-1-70-Horror-Short-Stories-Novels-and-Juvenilia-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/1095095093092096/The-Complete-Works-of-H-P-Lovecraft-102-Horror-Short-Stories-Novels-Juvenelia-Collaborations-and-Ghost-Writings-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/3094097091094/Necronomicon-The-Best-Weird-Tales-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/1093099096090094/Call-of-Cthulhu-Horror-Roleplaying-by-Sandy-Petersen.pdf
    • http://loaminoo.linkpc.net/1099093098098093/Call-of-Cthulhu-D20-Roleplaying-Game-by-Monte-Cook.pdf
    • http://loaminoo.linkpc.net/1099093097098091/Reign-of-Terror-Epic-Call-of-Cthulhu-Adventures-in-Revolutionary-France-by-Mark-Morrison.pdf
    • http://loaminoo.linkpc.net/4099097090099099/The-Colour-Out-of-Space-Tales-of-Cosmic-Horror-by-Lovecraft-Blackwood-Machen-Poe-and-Other-Masters-of-the-Weird-by-Douglas-Thin.pdf
    • http://loaminoo.linkpc.net/1094092097098096/The-Call-of-the-Weird-Travels-in-American-Subcultures-by-Louis-Theroux.pdf
    • http://loaminoo.linkpc.net/9099090093092091/Dissecting-Cthulhu-Essays-on-the-Cthulhu-Mythos-by-S-T-Joshi.pdf
    • http://loaminoo.linkpc.net/2092093097096095/Explaining-Cthulhu-to-Grandma-and-Other-Stories-by-Alex-Shvartsman.pdf
    • http://loaminoo.linkpc.net/6094091091091/The-Dunwich-Horror-and-Other-Stories-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/3097097097090096/The-Shadow-Over-Innsmouth-And-Other-Stories-Of-Horror-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/2098098096091092/The-Whisperer-in-Darkness-Collected-Stories-Volume-1-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/1095095093092096/The-Complete-Wor

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