Malicious PDF — malware analysis report

Static analysis result for SHA-256 b566d87ed20ded52…

MALICIOUS

PDF

14.5 KB Created: 2019-04-30 02:51:57 +01:00 Authoring application: mPDF 5.7
MD5: f0c58229bf97d1003a95055516e220e5 SHA-1: c7c0a16a24b3599b77002f4c80622653f4d5aa03 SHA-256: b566d87ed20ded528aeae331cf89d0e3f0b2babee895466ddc3f7590ae2783cc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious with high confidence. While the URLs themselves are marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/2093095095099096/My-Warrior-My-Slave-by-Nana-G-.pdf
    • http://loaminoo.linkpc.net/2093095095099099/Slave-of-Heart-by-Nana-G-.pdf
    • http://loaminoo.linkpc.net/5090093099099095/Xena-Warrior-Princess---Slave-by-John-Wagner.pdf
    • http://loaminoo.linkpc.net/1094093099096097/Nana-Vol-7-Nana-7-by-Ai-Yazawa.pdf
    • http://loaminoo.linkpc.net/1094093098098099/Nana-Vol-13-Nana-13-by-Ai-Yazawa.pdf
    • http://loaminoo.linkpc.net/2094090094098096/12-Years-a-Slave-and-Other-Slave-Narratives-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/4097099097090097/Slave-in-Training-The-Slave-Book-1-by-Danny-Tyran.pdf
    • http://loaminoo.linkpc.net/9098099093093091/The-Accidental-Slave-The-Slave-Series-1-by-Elin-Peer.pdf
    • http://loaminoo.linkpc.net/1096090099098091/Colum-s-Viking-Captivity-III-The-Warrior-Slave-Colum-s-Viking-Captivity-3-by-Brad-Vance.pdf
    • http://loaminoo.linkpc.net/1092098095098096/Slave-Girl-Flogging-Stool-The-Atkoi-Slave-Girl-Book-5-by-Henry-Sparrowhawk.pdf
    • http://loaminoo.linkpc.net/4098096096091094/The-Slave-Trade-The-Story-of-the-Atlantic-Slave-Trade-1440-1870-by-Hugh-Thomas.pdf
    • http://loaminoo.linkpc.net/1092092095099095/The-Warrior-of-Clan-Kincaid-Highland-Warrior-3-by-Lily-Blackwood.pdf
    • http://loaminoo.linkpc.net/1098098097099096/Deviant-Warrior-Dark-Warrior-Alliance-3-by-Brenda-Trim.pdf
    • http://loaminoo.linkpc.net/2097099095098092/Bound-to-a-Warrior-The-Warrior-King-1-by-Donna-Fletcher.pdf
    • http://loaminoo.linkpc.net/3094092090093099/Wed-to-a-Highland-Warrior-The-Warrior-King-4-by-Donna-Fletcher.pdf
    • http://loaminoo.linkpc.net/3097096096090094/Warrior-Redeemed-Nephilim-Warrior-4-by-Kate-Young.pdf
    • http://loaminoo.linkpc.net/8092091091091090/Warrior-Coup-The-Warrior-Trilogy-3-by-Michael-A-Stackpole.pdf
    • http://loaminoo.linkpc.net/3090094093096090/Slave-Girl-Captives-The-Atkoi-Slave-Girl-Book-16-by-Henry-Sparrowhawk.pdf
    • http://loaminoo.linkpc.net/4097095091094091/A-Warrior-s-Heart-Warrior-1-by-Margaret-Moore.pdf
    • http://loaminoo.linkpc.net/1095092093095092/A-Warrior-s-Redemption-The-Warrior-Kind-1-by-Guy-S-Stanton-III.pdf
    • http://loaminoo.linkpc.net/1098098097099096/Deviant-Warrior-Dark-Warrior-A

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