Malicious PDF — malware analysis report

Static analysis result for SHA-256 3823b5dcce6b48fe…

MALICIOUS

PDF

16.1 KB Created: 2019-04-30 18:15:07 +01:00 Authoring application: mPDF 5.7
MD5: a2af7e9a1dd1a1216feda092abca1824 SHA-1: f5b970c85a70ca14f285cd354a3709e5c53c5147 SHA-256: 3823b5dcce6b48fed037bd6d3a1284b6e6f049b5bbba05b128eb6f7e13b193ff
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique often used for SEO spam or to distribute further malicious content. The ML classifier strongly supports the malicious verdict. While no scripts were extracted, the PDF structure itself indicates a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/4091098094091093/Biting-Cold-Chicagoland-Vampires-6-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/1090094093094/Biting-Cold-Chicagoland-Vampires-6-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/1099096090095096/Twice-Bitten-Chicagoland-Vampires-3-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/3093094099093092/Slaying-It-Chicagoland-Vampires-13-5-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/3091097097096094/Twice-Bitten-Chicagoland-Vampires-3-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/1099096091091093/Hard-Bitten-Chicagoland-Vampires-4-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/2091099090090097/Wild-Things-Chicagoland-Vampires-9-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/1098091094095094/Hard-Bitten-Chicagoland-Vampires-4-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/4096093091092090/Some-Girls-Bite-Chicagoland-Vampires-1-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/7095098097093/Dark-Debt-Chicagoland-Vampires-11-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/5094094096/Blade-Bound-Chicagoland-Vampires-13-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/4097095090097/Blood-Games-Chicagoland-Vampires-10-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/6092095099099091/Certaines-mettent-les-dents-Les-Vampires-de-Chicago-T1-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/1092096099095093/Charmfall-Dark-Elite-3-by-Chloe-Neill.pdf
    • http://loaminoo.linkpc.net/2098092091091099/Biting-Oz-Biting-Love-5-by-Mary-Hughes.pdf
    • http://loaminoo.linkpc.net/1094098094094098/Cold-as-Ice-The-Briar-Creek-Vampires-5-by-Jayme-Morse.pdf
    • http://loaminoo.linkpc.net/1090092098097094094/Summerhill-for-and-Against-Outstanding-Writers-in-Education-and-Psychology-Evaluate-the-Concepts-of-A-S-Neill-by-A-S-Neill.pdf
    • http://loaminoo.linkpc.net/8094090097091099/Chloe-s-Vegan-Italian-Kitchen-150-Pizzas-Pastas-Pestos-Risottos-amp-Lots-of-Creamy-Italian-Classics-by-Chloe-Coscarelli.pdf
    • http://loaminoo.linkpc.net/7094095094090097/Zoe-and-Chloe-Out-to-Lunch-Zoe-amp-Chloe-2-by-Sue-Limb.pdf
    • http://loaminoo.linkpc.net/3093099096092093/Toy-Box-Biting-by-M-Rode.pdf
    • http://loaminoo.linkpc.net/4096093091092090/Some-Girls-Bite-Chicagoland-Vampires-1-by-Chloe-N

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