Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60608913e92cd2a…

MALICIOUS

PDF

19.2 KB Created: 2019-05-01 17:47:36 +01:00 Authoring application: mPDF 5.7
MD5: e717968a637006bd5e1f2fddca7a5d45 SHA-1: 3cc6526b6b3c30f7ecfe9aa8e414f2590bf76169 SHA-256: f60608913e92cd2a50061ebbc415448c8c0b4cd91614ef0bb77ae9eeb82e54ed
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest an attempt to manipulate search results or redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1092098098093099/Clan-Rathskeller-The-Iron-Druid-Chronicles-0-5-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/2091098094099094/Hounded-Hexed-Hammered---The-Iron-Druid-Chronicles-Bundle-The-Iron-Druid-Chronicles-1-3-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/2094091096/Staked-The-Iron-Druid-Chronicles-8-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/4098093090095091/Hounded-The-Iron-Druid-Chronicles-1-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/3092094095091096/Hounded-The-Iron-Druid-Chronicles-1-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/4098095097097097/Hounded-The-Iron-Druid-Chronicles-1-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/3099096091092/Hammered-The-Iron-Druid-Chronicles-3-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/1097098095094093/Two-Ravens-and-One-Crow-The-Iron-Druid-Chronicles-4-5-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/2098091094098091/A-Test-of-Mettle-The-Iron-Druid-Chronicles-3-5-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/3090091090093/Tricked-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/3090098092096/Hunted-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/5090095/Heir-to-the-Jedi-by-Kevin-Hearne.pdf
    • http://loaminoo.linkpc.net/7099097099096092/Clann-Somhairle-Clan-Donald-Clan-Macdougall-Clan-MacDonald-of-Sleat-Clan-MacDonald-of-Clanranald-Clan-Macalister-Alexander-of-Islay-by-Source-Wikipedia.pdf
    • http://loaminoo.linkpc.net/9094099091091097/Iron-Fey-Series-Volume-1-The-Iron-King-Winter-s-Passage-The-Iron-Daughter-The-Iron-Queen-Summer-s-Crossing-by-Julie-Kagawa.pdf
    • http://loaminoo.linkpc.net/3092095092098095/The-Arcadian-Druid-Age-Of-Magic---A-Kurtherian-Gambit-Series-Tales-of-the-Feisty-Druid-1-by-Candy-Crum.pdf
    • http://loaminoo.linkpc.net/1098097099096091/Her-Druid-Fantasy-The-Amber-Druid-Series-2-by-Trish-F-Leger.pdf
    • http://loaminoo.linkpc.net/1094093090097092/A-Journey-to-the-Northern-Ocean-The-Adventures-of-Samuel-Hearne-by-Samuel-Hearne.pdf
    • http://loaminoo.linkpc.net/2092096097091098/The-Iron-Lily-The-Mantlemass-Chronicles-6-by-Barbara-Willard.pdf
    • http://loaminoo.linkpc.net/8098091098/The-Iron-Flower-The-Black-Witch-Chronicles-2-by-Laurie-Forest.pdf
    • http://loaminoo.linkpc.net/3095090092094098/Highlanders-Scottish-Medieval-1-The-MacLerie-Clan-6-5-MacKinloch-Clan-3-5-by-Brenda-Joyce.pdf

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