Malicious PDF — malware analysis report

Static analysis result for SHA-256 18870997c5f0b751…

MALICIOUS

PDF

17.2 KB Created: 2019-04-30 04:17:56 +01:00 Authoring application: mPDF 5.7
MD5: 85f0a067410c93c8d58bc9c0469a8905 SHA-1: 8a8f8b6d1bc9c48f2b748e4e8d9d6de8c01d31cc SHA-256: 18870997c5f0b75136c230d2314bf8ca81dafb40c435e2ca9bb7498d55172c13
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm that directs users to external PDF files. This technique is often used to artificially inflate search engine rankings or to distribute malicious content under the guise of legitimate downloads. The ML classifier also flagged this PDF as malicious with high confidence.

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/3093099090092094/Royal-City-Vol-2-Sonic-Youth-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/2097099093092098/Sonic-Youth-Sensational-Fix-by-Roland-Groenenboom.pdf
    • http://loaminoo.linkpc.net/8094091097098090/Goodbye-20th-Century-A-Biography-of-Sonic-Youth-by-David-Browne.pdf
    • http://loaminoo.linkpc.net/1097098092090091/Old-Man-Logan-1-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/9090096091096/The-Underwater-Welder-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/2094090090091/Descender-Vol-5-Rise-of-the-Robots-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/9097092097095098/Wolverine-Old-Man-Logan-Vol-2-Bordertown-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/3091091093099/Sweet-Tooth-Volume-6-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/2095092099092095/Sweet-Tooth-Volume-2-In-Captivity-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/5095095091099/Bloodshot-Reborn-Volume-1-Colorado-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/3095094098099097/Gideon-Falls-Vol-1-The-Black-Barn-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/9090091098095/Bloodshot-Reborn-1-Digital-Exclusives-Edition-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/2095093093096092/Justice-League-Dark-Volume-3-The-Death-of-Magic-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/3090094093099097/Animal-Man-Volume-2-Animal-vs-Man-by-Jeff-Lemire.pdf
    • http://loaminoo.linkpc.net/1090091097098092097/Sacred-Threads-An-Asian-Religions-Curriculum-for-High-School-Youth-by-Jeff-Liebmann.pdf
    • http://loaminoo.linkpc.net/8095091094092096/Sonic-the-Hedgehog-Archives-Volume-2-Sonic-the-Hedgehog-Archives-2-by-Michael-Gallagher.pdf
    • http://loaminoo.linkpc.net/1091095090099091097/Crossing-Boundaries-African-American-Inner-City-and-European-Migrant-Youth-by-Diedrich.pdf
    • http://loaminoo.linkpc.net/1091094095095096097/Love-Ya-Hate-Ya-The-Sociolinguistic-Study-of-Youth-Language-and-Youth-Identities-by-J-Normann-Jorgensen.pdf
    • http://loaminoo.linkpc.net/2096092098097097/Dome-City-Blues-by-Jeff-Edwards.pdf
    • http://loaminoo.linkpc.net/3097096090091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-Mortal-Instruments-1-5-by-Cassandra-Clare.pdf

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