Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a5c323b1888049…

MALICIOUS

PDF

17.5 KB Created: 2019-04-30 04:54:37 +01:00 Authoring application: mPDF 5.7
MD5: 238c99b07fb2328e1efbc372ad297f87 SHA-1: 323a3b11b564380f7d0f5ee736521f1ee4967aa1 SHA-256: c2a5c323b18880498602c6835d970b5d494523edf73a5558b498f9f047c92372
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS and ClamAV_DETECTION heuristics confirm the malicious nature of the file. The primary attack pattern appears to be the distribution of a link farm, likely for SEO poisoning or to direct users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7454339-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7454339-0
  • 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/7099093096090/The-Amulet-of-Samarkand-The-Graphic-Novel-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/1098092095098091/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3092097095094/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4090091093090093/The-Amulet-of-Samarkand-Bartimaeus-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4097095092095098/The-Amulet-of-Samarkand-Bartimaeus-Trilogy-1-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3091092096099/The-Screaming-Staircase-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/1097097099096099/Buried-Fire-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/3093094093093/The-Golem-s-Eye-Bartimaeus-2-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2098093091091098/The-Golem-s-Eye-Bartimaeus-2-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2098093094093091/Ptolemy-s-Gate-Bartimaeus-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/6095091093/The-Empty-Grave-Lockwood-amp-Co-5-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/5092098095090/The-Empty-Grave-Lockwood-amp-Co-5-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/4091097099096092/Ptolemy-s-Gate-Bartimaeus-Trilogy-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/8098091097098095/Articles-on-Bartimaeus-Trilogy-Including-The-Amulet-of-Samarkand-the-Golem-s-Eye-Ptolemy-s-Gate-Magic-in-the-Bartimaeus-Trilogy-Characters-of-the-Bartimaeus-Trilogy-by-Hephaestus-Books.pdf
    • http://loaminoo.linkpc.net/3095098092099/The-Bartimaeus-Trilogy-Boxed-Set-Bartimaeus-1-3-by-Jonathan-Stroud.pdf
    • http://loaminoo.linkpc.net/2099094090094096/Hawkmoon-The-Mad-God-s-Amulet-The-Mad-God-s-Amulet-by-Michael-Moorcock.pdf
    • http://loaminoo.linkpc.net/4094093097099096/The-Gettysburg-Address-A-Graphic-Adaptation-by-Jonathan-Hennessey.pdf
    • http://loaminoo.linkpc.net/9090095097095/Trinity-A-Graphic-History-of-the-First-Atomic-Bomb-by-Jonathan-Fetter-Vorm.pdf
    • http://loaminoo.linkpc.net/4092091093093095/The-Lost-Hero-The-Graphic-Novel-The-Heroes-of-Olympus-The-Graphic-Novels-1-by-Robert-Venditti.pdf
    • http://loaminoo.linkpc.net/3092091095096093/The-Throne-of-Fire-The-Graphic-Novel-The-Kane-Chronicles-The-Graphic-Novels-2-by-Orpheus-Collar.pdf
    • http://loaminoo.linkpc.net/50920980950

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