Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ae26eefbb46067…

MALICIOUS

PDF

17.6 KB Created: 2019-04-30 05:08:57 +01:00 Authoring application: mPDF 5.7
MD5: b5919dec6e98581dd69d16c8feaa9a24 SHA-1: 607e9d91a1fcad48e1b90ada7997e28c04d32fd7 SHA-256: b5ae26eefbb4606782bd47a8aa0efcdd7a89de623d9a50ce0e3a41ed92e41782
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

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/2094091095092090/By-Honor-Bound-Two-Navy-SEALs-the-Medal-of-Honor-and-a-Story-of-Extraordinary-Courage-by-Tom-Norris.pdf
    • http://loaminoo.linkpc.net/1094093098099092/The-Honor-of-Spies-Honor-Bound-5-by-W-E-B-Griffin.pdf
    • http://loaminoo.linkpc.net/6098099097094/Stealing-the-General-The-Great-Locomotive-Chase-and-the-First-Medal-of-Honor-by-Russell-S-Bonds.pdf
    • http://loaminoo.linkpc.net/3092094098096099/Medal-of-Honor-Profiles-of-America-s-Military-Heroes-from-the-Civil-War-to-the-Present-by-Allen-Mikaelian.pdf
    • http://loaminoo.linkpc.net/3099090094098098/Bound-by-Honor-Bound-by-Love-Native-American-Romance-3-by-Ruth-Ann-Nordin.pdf
    • http://loaminoo.linkpc.net/6098094092093090/Honor-1-Protect-Serve-Beat-Burn-Honor-1-by-Bill-Jemas.pdf
    • http://loaminoo.linkpc.net/7090096090/Saved-Honor-Bound-1-by-Angel-Payne.pdf
    • http://loaminoo.linkpc.net/1091091099095093094/Bound-by-Honor-Contract-to-Love-4-by-Fel-Fern.pdf
    • http://loaminoo.linkpc.net/3093095090095091/The-Honor-of-the-Queen-Honor-Harrington-2-by-David-Weber.pdf
    • http://loaminoo.linkpc.net/2095099093091090/Echoes-of-Honor-Honor-Harrington-8-by-David-Weber.pdf
    • http://loaminoo.linkpc.net/7097094090092/Honor-Student-Honor-1-by-Teresa-Mummert.pdf
    • http://loaminoo.linkpc.net/2091099096099094/War-of-Honor-Honor-Harrington-10-by-David-Weber.pdf
    • http://loaminoo.linkpc.net/7096095092095096/Honor-and-Obey-Honor-3-by-Teresa-Mummert.pdf
    • http://loaminoo.linkpc.net/4093090097097098/Bound-by-Honor-Born-in-Blood-Mafia-Chronicles-1-by-Cora-Reilly.pdf
    • http://loaminoo.linkpc.net/4095096098098096/Bound-by-Honor-Born-in-Blood-Mafia-Chronicles-1-5-by-Cora-Reilly.pdf
    • http://loaminoo.linkpc.net/3098091091092096/Bound-by-Honor-An-Erotic-Novel-of-Maid-Marian-Seducing-the-Classics-3-by-Colette-Gale.pdf
    • http://loaminoo.linkpc.net/9091095093099095/Honor-Bound-My-Journey-to-Hell-and-Back-with-Amanda-Knox-by-Raffaele-Sollecito.pdf
    • http://loaminoo.linkpc.net/7094096098097091/Navy-SEALs-Special-Operations-for-the-U-S-Navy-by-Simone-Payment.pdf
    • http://loaminoo.linkpc.net/1090096097093094/Price-of-Honor-Honor-9-by-Radclyffe.pdf
    • http://loaminoo.linkpc.net/3095096096090092/Word-of-Honor-Honor-7-by-Radclyffe.pdf
    • http://loaminoo.linkpc.net/3092094098096099/Medal-of-Honor-Profiles-of-America-

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