Malicious PDF — malware analysis report

Static analysis result for SHA-256 324f556fd68c7e96…

MALICIOUS

PDF

20.3 KB Created: 2019-04-30 02:50:25 +01:00 Authoring application: mPDF 5.7
MD5: 25b8a78b1802f7d2c0e2fbc88bb097b5 SHA-1: 6601269f87c1b3cf868b2b87ff1c227d7aac05bb SHA-256: 324f556fd68c7e966f2772236e8e80f3eb4fc2a3206aeaf451f3768a99b77d0b
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which are likely intended to direct users to external sites. While the specific URLs extracted were labeled as confirmed benign, the sheer volume and nature of the links suggest a malicious intent to distribute or redirect users. The ML_NYX_PDF_MALICIOUS classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/1093094092091092/Bound-Dark-Horse-Series-Book-1-by-J-S-Scott.pdf
    • http://loaminoo.linkpc.net/2098095092097094/The-Dark-Horse-Book-of-Monsters-The-Dark-Horse-Book-of-4-by-Scott-Allie.pdf
    • http://loaminoo.linkpc.net/1093093095097094/Orson-Scott-Card-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Ender-Series-Formic-War-Series-Shadow-Series-Ender-Series-amp-Tales-of-Alvin-Maker-Series-Listabook-Series-Order-Book-15-by-Listabook.pdf
    • http://loaminoo.linkpc.net/2092092094095095/Dark-Horse-Dark-Horse-1-by-Kate-Sherwood.pdf
    • http://loaminoo.linkpc.net/1092097098094096/The-Dark-Truth-Book-One---The-Dark-Passage-Series-by-Jerry-Knaak.pdf
    • http://loaminoo.linkpc.net/3099092093098098/Wild-Child-Bound-for-Hell-MC-Series-Book-1-by-Needa-Warrant.pdf
    • http://loaminoo.linkpc.net/4093093091094093/Bound-by-Tears-Cauld-Ane-Series-Book-6-by-Tracey-Jane-Jackson.pdf
    • http://loaminoo.linkpc.net/4098092090099092/Forever-Bound-Bound-by-Darkness-1-by-Leanne-Scott.pdf
    • http://loaminoo.linkpc.net/2095099098098095/Bound-by-Love-The-Bound-Series-2-by-S-E-Gilchrist.pdf
    • http://loaminoo.linkpc.net/4096096090098099/Cross-Train-Your-Horse-Book-One-Simple-Dressage-for-Every-Horse-Every-Sport-by-Jane-Savoie.pdf
    • http://loaminoo.linkpc.net/1090098095098092095/Peanut-Finds-A-Home-Peanut-the-Mini-Horse-Series-Book-1-by-Holly-Hunstad-Asbridge.pdf
    • http://loaminoo.linkpc.net/1096091091090097/The-Bound-Series-Bound-1-3-by-Ava-March.pdf
    • http://loaminoo.linkpc.net/2094092090092098/Fear-the-Darkness-The-Dark-Series-Book-3-by-L-A-Wild.pdf
    • http://loaminoo.linkpc.net/9096096097097/Until-Dark-Until-forever-series-Book-1-by-Sheridan-Cooper.pdf
    • http://loaminoo.linkpc.net/7092097092099093/Bound-Bound-Hearts-Book-1-by-S-N-Garza.pdf
    • http://loaminoo.linkpc.net/8091097092094094/Dark-Billionaire-3-Stepbrother-Series-Book-2-by-Kristina-Royer.pdf
    • http://loaminoo.linkpc.net/8098092099098094/Dark-Obsession-The-Ella-Reynolds-Series-Book-3-by-Liz-Schulte.pdf
    • http://loaminoo.linkpc.net/8098094095096097/Restart-Dark-Paladin-Book-3-LitRPG-Series-by-Vasily-Mahanenko.pdf
    • http://loaminoo.linkpc.net/8094098099094092/Kackerlacka-and-Eaten-Duet-Dark-and-gripping-with-a-shocking-twist-Arctic-Chiller-Series-Book-3-by-John-Hellgren.pdf
    • http://loaminoo.linkpc.net/1097099094095095/The-Method---How-To-Apply-The-Law-Of-Attraction-amp-Get-Everything-You-Want-Out-Of-Life-Law-Of-Attraction-Series-Book-1-by-Scott-Soloff.pdf
    • http://loaminoo.linkpc.net/4096096090098099/Cross-Train-Your-Horse-Book-One-Simple-Dressage-for-E