Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d076acc68cbbc08…

MALICIOUS

PDF

13.4 KB Created: 2019-05-01 17:57:59 +01:00 Authoring application: mPDF 5.7
MD5: e6d1e018a1cd2bbf48f41d11ae600d75 SHA-1: a1ba4d808f027e6a78c289f16e5b9061b62c91dd SHA-256: 9d076acc68cbbc08517303a77a09b50ad62e9c9c694f686d115cc5061b9537cf
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique often used for SEO spam or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, but the primary malicious activity appears to be the mass linking.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/2094098099095097/Alone-Bone-Secrets-4-by-Kendra-Elliot.pdf
    • http://loaminoo.linkpc.net/2095098092096092/Veiled-Bone-Secrets-3-5-by-Kendra-Elliot.pdf
    • http://loaminoo.linkpc.net/2097099/Bridged-Callahan-amp-McLane-2-by-Kendra-Elliot.pdf
    • http://loaminoo.linkpc.net/7090098099092090/On-Her-Father-s-Grave-Rogue-River-1-by-Kendra-Elliot.pdf
    • http://loaminoo.linkpc.net/2097091094098094/The-Secrets-We-Left-Behind-by-Susan-Elliot-Wright.pdf
    • http://loaminoo.linkpc.net/3091092093091095/Elliot-Finds-a-Home-Elliot-the-Magical-Puppy-Book-1-by-Amelia-Picklewiggle.pdf
    • http://loaminoo.linkpc.net/1090098093095090/A-Hole-In-Time-An-Elliot-James-Adventure-Elliot-James-1-by-Jack-C-Monroe.pdf
    • http://loaminoo.linkpc.net/1095091091091093/Bone-by-Bone-Comparing-Animal-Skeletons-by-Sara-Levine.pdf
    • http://loaminoo.linkpc.net/4093095099091/Bone-Vol-3-Eyes-of-the-Storm-Bone-3-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/4094092094093/Bone-Vol-2-The-Great-Cow-Race-Bone-2-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/2094091094091094/Bone-Vol-9-Crown-of-Horns-Bone-9-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/1098094092095099/Bone-Vol-8-Treasure-Hunters-Bone-8-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/1098094092095098/Bone-Vol-9-Crown-of-Horns-Bone-9-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/6099094097095091/Seefer-Elliot-and-the-World-Aside-Ours-Seefer-Elliot-1-by-Pat-Mallon.pdf
    • http://loaminoo.linkpc.net/1092094097096094/Seefer-Elliot-and-the-Darkness-Within-Seefer-Elliot-2-by-Pat-Mallon.pdf
    • http://loaminoo.linkpc.net/6095099095099/Bone-Vol-4-The-Dragonslayer-Bone-4-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/3095099093096/Bone-Vol-1-Out-from-Boneville-Bone-1-by-Jeff-Smith.pdf
    • http://loaminoo.linkpc.net/2091095096098099/Bone-by-Bone-by-Sanjida-Kay.pdf
    • http://loaminoo.linkpc.net/1097090091096099/Bonfire-by-Kendra-Glenn.pdf
    • http://loaminoo.linkpc.net/7095091099096091/Eternal-Sun-by-Kendra-Kilbourn.pdf
    • http://loaminoo.linkpc.net/2094091094091094/Bone-V

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