Malicious PDF — malware analysis report

Static analysis result for SHA-256 48cb5179550cad8f…

MALICIOUS

PDF

12.6 KB Created: 2019-04-30 03:59:13 +01:00 Authoring application: mPDF 5.7
MD5: 1de443e8d0fbfb90bfe21d5ab57aef7a SHA-1: b29dad569b1be5c4f07d604b0123d685e569e457 SHA-256: 48cb5179550cad8f36ffca3668b644f7dcea0548b6962613f860445a79fc1a0f
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to other PDF files hosted on the 'loaminoo.linkpc.net' domain. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. 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 suggest a malicious intent, likely to lead users to further malicious sites or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/2094090095093091/Mildred-Pierce-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/1093097091099093/Mildred-Pierce-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/1093090099092097/Mildred-and-Elsie-Mildred-Keith-3-by-Martha-Finley.pdf
    • http://loaminoo.linkpc.net/3099099094095095/Serenade-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/3096092097093097/Cloud-Nine-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/1097098097091095/The-Cocktail-Waitress-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/4091090093091099/Double-Indemnity-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/3095092094091/The-Postman-Always-Rings-Twice-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/4099093090096092/The-Postman-Always-Rings-Twice-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/3099090091090090/Cain-by-James-Byron-Huggins.pdf
    • http://loaminoo.linkpc.net/3094093091097/Double-Indemnity-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/3096092097094092/The-Enchanted-Isle-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/5095090096097097/Great-Stories-of-Mystery-and-Suspense-Vol-2-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/1091093092096098/The-Mark-of-Cain-The-Cain-Chronicles-1-by-A-D-Seeley.pdf
    • http://loaminoo.linkpc.net/5098090097093/The-Cain-Casey-Series-Volume-1-Cain-Casey-1-3-by-Ali-Vali.pdf
    • http://loaminoo.linkpc.net/5094097095096099/Tamora-Pierce-Enter-the-Circle-Sampler-by-Tamora-Pierce.pdf
    • http://loaminoo.linkpc.net/4092095097092090/Maxie-by-Mildred-Kantrowitz.pdf
    • http://loaminoo.linkpc.net/1094092098090/Touchmark-by-Mildred-Lawrence.pdf
    • http://loaminoo.linkpc.net/1095091090099090/The-Rock-And-The-Willow-by-Mildred-Lee.pdf
    • http://loaminoo.linkpc.net/1095092099099/Let-the-Circle-Be-Unbroken-by-Mildred-D-Taylor.pdf
    • http://loaminoo.linkpc.net/1091093092096098/The-Mark-of-Cain-The-Ca

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