Malicious PDF — malware analysis report

Static analysis result for SHA-256 d88d8a5bf92711f0…

MALICIOUS

PDF

26.9 KB Created: 2019-05-01 18:31:44 +01:00 Authoring application: mPDF 5.7
MD5: 213e7b00f0964b897bb8761787454a52 SHA-1: 992300b36f17068f89b15caa5162f7c17cc8c32d SHA-256: d88d8a5bf92711f0d78dbbb6495c14a16d1d7f0c4d616fa594daf18473faa3ae
90 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs. While the document body is heavily obfuscated and unreadable, the presence of a large number of external links suggests a malicious intent, likely to redirect users to phishing pages or download further malware. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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://unieoooq.linkpc.net/74e94e34e64e14e0/Dichiaratione-Dell-arco-Fatto-in-Padova-Nella-Venuta-Della-Serenissima-Reina-Bona-Di-Polonia-by-Alessandro-Bassani.pdf
    • http://unieoooq.linkpc.net/54e84e84e64e24e3/Cenno-Storico-Della-Taumaturga-Effigie-Di-S-Maria-Dell-arco-Che-Si-Venera-Nella-Chiesa-Dei-Pp-Minori-Riformati-in-Miano-by-Eusebio-Partenico.pdf
    • http://unieoooq.linkpc.net/14e04e14e44e74e64e9/Impresa-Dell-accademia-Partenia-Minore-Eretta-GI-Nel-Collegio-Della-Compagnia-Di-Gies-in-Milano-Con-Un-Discorso-Recitatovi-Sopra-in-Lingua-Latina-E-Poi-Dato-in-Luce-Nella-Volgare-by-Fabritio-Visconte.pdf
    • http://unieoooq.linkpc.net/94e34e04e64e84e5/Piero-Della-Francesca-by-Alessandro-Angelini.pdf
    • http://unieoooq.linkpc.net/64e14e14e64e44e4/Da-Aztlan-All-amerindia-Multiculturalismo-E-Difesa-Dell-identita-Chicana-Nella-Poesia-Di-Alurista-by-Erminio-Corti.pdf
    • http://unieoooq.linkpc.net/74e84e44e64e14e9/Mediobanca-Editore-Potere-Di-Fine-Millennio-Giornalismo-E-Affari-Nella-Crisi-Gemina-Rizzoli-Corriere-Della-Sera-by-Giuseppe-Leuzzi.pdf
    • http://unieoooq.linkpc.net/84e84e14e54e84e4/Psicologia-dello-sviluppo-dell-intelligenza-e-della-creativit-by-Oriana-Scuderi.pdf
    • http://unieoooq.linkpc.net/94e84e84e54e24e3/Il-Silenzio-Dell-amicizia-Una-Storia-Della-Storia-by-Giuseppe-Todisco.pdf
    • http://unieoooq.linkpc.net/84e54e74e94e84e1/Mio-Nonno-Gennaro-La-Vicenda-Artistica-Di-Gennaro-Pasquariello-Nella-Storia-Della-Canzone-Napoletana-by-Gennaro-Pasquariello.pdf
    • http://unieoooq.linkpc.net/84e04e44e44e0/Nella-Last-s-War-The-Second-World-War-Diaries-of-Housewife-49-by-Nella-Last.pdf
    • http://unieoooq.linkpc.net/74e44e64e14e34e6/Money-Bona-Fide-or-Non-Bona-Fide-by-Edward-E-Popp.pdf
    • http://unieoooq.linkpc.net/24e94e64e44e34e0/An-Intimation-of-Things-Distant-The-Collected-Fiction-of-Nella-Larsen-by-Nella-Larsen.pdf
    • http://unieoooq.linkpc.net/54e74e24e04e74e0/L-evoluzione-dell-ordine-La-crescita-dell-informazione-dagli-atomi-alle-economie-by-C-sar-A-Hidalgo.pdf
    • http://unieoooq.linkpc.net/74e84e84e74e44e9/The-Short-Fiction-of-Nella-Larsen-by-Nella-Larsen.pdf
    • http://unieoooq.linkpc.net/14e54e04e34e94e3/Polonia---Pani-Dewicka-and-Other-Stories-by-W-M-J-Kreucher.pdf
    • http://unieoooq.linkpc.net/84e74e54e94e9/Serenissima-aka-Shylock-s-Daughter-by-Erica-Jong.pdf
    • http://unieoooq.linkpc.net/74e84e04e34e44e2/Compendio-Della-Vita-E-Delle-Gesta-Di-Giuseppe-Balsamo-Denominato-Il-Conte-Cagliostro-Che-Si-Estratto-Dal-Processo-Contro-Di-Lui-Formato-in-Roma-l-Anno-1790-E-Che-Pu-Servire-Di-Scorta-Per-Conoscere-l-Indole-Della-Setta-by-Giovanni-Barberi.pdf
    • http://unieoooq.linkpc.net/74e34e04e24e24e8/Sang-froid-Une-enqu-te-de-Maggie-O-Dell-Les-enqu-tes-de-Maggie-O-Dell-t-1-by-Alex-Kava.pdf
    • http://unieoooq.linkpc.net/14e14e24e24e64e14e9/Utan-n-d-Maggie-O-Dell-8-ga-f-r-ga-Maggie-O-Dell-8-5-by-Alex-Kava.pdf
    • http://unieoooq.linkpc.net/74e84e74e44e24e6/La-reina-blanca-by-Philippa-Gregory.pdf

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