Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7c88054e926bd3…

MALICIOUS

PDF

15.7 KB Created: 2019-04-30 04:07:24 +01:00 Authoring application: mPDF 5.7
MD5: c0af87b1c9e5f8690ec25f6568201b8b SHA-1: 9c4fad1109e1f1cf3fa586298167911171b79914 SHA-256: 8b7c88054e926bd32de8ee74ac0aed773a56fae154e16f355b95e51e2d9c7a4e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain loaminoo.linkpc.net. This is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious or unwanted content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/7095099094094092/The-Last-Lecture---Lessons-In-Living-by-Randy-Pausch.pdf
    • http://loaminoo.linkpc.net/1090092096093099094/Two-Lectures-Lecture-I-Turkey-and-Russia-With-a-Map-Showing-the-Position-of-Both-Armies-in-the-Principalities-Lecture-II-the-Exile-in-a-Foreign-Land-A-Poetical-Sketch-by-Louis-Kazinski.pdf
    • http://loaminoo.linkpc.net/2093097099099098/Dream-New-Dreams-Reimagining-My-Life-After-Loss-by-Jai-Pausch.pdf
    • http://loaminoo.linkpc.net/9098099098093/Randy-Wayne-White-s-Ultimate-Tarpon-Book-The-Birth-of-Big-Game-Fishing-by-Randy-Wayne-White.pdf
    • http://loaminoo.linkpc.net/7099095094096091/Big-Pig-and-the-Lost-Elf-by-Randy-Briley.pdf
    • http://loaminoo.linkpc.net/8092095097098091/Moebius-2-by-Randy-Lofficier.pdf
    • http://loaminoo.linkpc.net/3092095092092095/Rule-of-Law-by-Randy-Singer.pdf
    • http://loaminoo.linkpc.net/3093093098092099/Downswing-by-Randy-Attwood.pdf
    • http://loaminoo.linkpc.net/3090092090091091/Junk-Randy-and-Max-2-by-G-R-Richards.pdf
    • http://loaminoo.linkpc.net/3094095092090094/Courageous-by-Randy-Alcorn.pdf
    • http://loaminoo.linkpc.net/5090092097095099/Sons-In-The-Clouds-by-Randy-Mitchell.pdf
    • http://loaminoo.linkpc.net/5094098095092094/How-to-Be-Miserable-40-Strategies-You-Already-Use-by-Randy-J-Paterson.pdf
    • http://loaminoo.linkpc.net/6094093091091095/Scarlet-And-Gold-by-Randy-Mixter.pdf
    • http://loaminoo.linkpc.net/4093098093096090/Then-and-Now-The-Harmony-of-the-Instantaneous-All-by-Randy-Attwood.pdf
    • http://loaminoo.linkpc.net/6092099092097098/The-Nephilim-Resurgence-by-Randy-DeMain.pdf
    • http://loaminoo.linkpc.net/4099091096090/Safely-Home-by-Randy-Alcorn.pdf
    • http://loaminoo.linkpc.net/4098099092095090/Beggar-s-Feast-by-Randy-Boyagoda.pdf
    • http://loaminoo.linkpc.net/3097094099092098/Fatal-Convictions-by-Randy-Singer.pdf
    • http://loaminoo.linkpc.net/1092096091096092/Sons-In-The-Clouds-by-Randy-Mitchell.pdf
    • http://loaminoo.linkpc.net/5097092093097/Directed-Verdict-by-Randy-Singer.pdf

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