Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ea8487e657d20f…

MALICIOUS

PDF

25.2 KB Created: 2019-04-30 03:17:16 +01:00 Authoring application: mPDF 5.7
MD5: 39b3042dc5f915243761407387a54f78 SHA-1: 4af4e2e87af3eea5945882149c768a6266c76dd1 SHA-256: e9ea8487e657d20fcdafc4897fa70b32338d4cf596effac2bc94ec4ef0db39cd
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. While the extracted URLs themselves are currently classified as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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://muicuiu.dumb1.com/1a00a00a01a00a07/A-Country-of-Strangers-Blacks-and-Whites-in-America-by-David-K-Shipler.pdf
    • http://muicuiu.dumb1.com/4a01a05a00a07a08/White-Guilt-How-Blacks-and-Whites-Together-Destroyed-the-Promise-of-the-Civil-Rights-Era-by-Shelby-Steele.pdf
    • http://muicuiu.dumb1.com/2a03a00a09a08/Arab-and-Jew-Wounded-Spirits-in-a-Promised-Land-by-David-K-Shipler.pdf
    • http://muicuiu.dumb1.com/7a09a09a04a04a08/Born-in-the-Country-A-History-of-Rural-America-by-David-B-Danbom.pdf
    • http://muicuiu.dumb1.com/6a06a09a06a07a07/Blacks-Clown-Show-the-Blacks-by-Genet.pdf
    • http://muicuiu.dumb1.com/8a06a01a08a07a00/Wild-Horse-Country-The-History-Myth-and-Future-of-the-Mustang-America-s-Horse-by-David-Philipps.pdf
    • http://muicuiu.dumb1.com/4a03a03a06a02/Fire-Country-The-Country-Saga-1-by-David-Estes.pdf
    • http://muicuiu.dumb1.com/5a05a00a04a04/Ice-Country-The-Country-Saga-2-by-David-Estes.pdf
    • http://muicuiu.dumb1.com/4a02a04a03a00a06/Crossing-the-BLVD-Strangers-Neighbors-Aliens-in-a-New-America-by-Warren-Lehrer.pdf
    • http://muicuiu.dumb1.com/4a07a07a00a06a04/Imperfect-Strangers-by-David-Staniforth.pdf
    • http://muicuiu.dumb1.com/1a03a08a00a00a01/Albion-s-Seed-Four-British-Folkways-in-America-America-A-Cultural-History-Vol-I-by-David-Hackett-Fischer.pdf
    • http://muicuiu.dumb1.com/3a09a05a01a00a07/Hell-in-a-Handbasket-Dispatches-from-the-Country-Formerly-Known-as-America-by-Tom-Tomorrow.pdf
    • http://muicuiu.dumb1.com/7a00a07a00a01a01/Alleluia-America-An-Irish-Journalist-in-Bush-Country-by-Carole-Coleman.pdf
    • http://muicuiu.dumb1.com/6a01a08a08a07a06/Provencal-Interiors-French-Country-Style-in-America-by-Betty-Lou-Phillips.pdf
    • http://muicuiu.dumb1.com/4a08a05a04a08a03/Achieving-Our-Country-Leftist-Thought-in-Twentieth-Century-America-by-Richard-M-Rorty.pdf
    • http://muicuiu.dumb1.com/4a02a01a01a09a04/Come-Home-America-The-Rise-and-Fall-and-Redeeming-Promise-of-Our-Country-by-William-Greider.pdf
    • http://muicuiu.dumb1.com/7a01a09a03a05a01/Letter-from-Alabama-The-Inspiring-True-Story-of-Strangers-Who-Saved-a-Child-and-Changed-a-Family-Forever-by-David-L-Workman.pdf
    • http://muicuiu.dumb1.com/1a07a02a09a06a04/Slavery-in-Indian-Country-The-Changing-Face-of-Captivity-in-Early-America-by-Christina-Snyder.pdf
    • http://muicuiu.dumb1.com/1a05a04a03a03a09/How-Capitalism-Saved-America-The-Untold-History-of-Our-Country-from-the-Pilgrims-to-the-Present-by-Thomas-J-DiLorenzo.pdf
    • http://muicuiu.dumb1.com/6a02a06a00a04a04/Seduced-While-Strangers-Watch-Four-stories-about-women-getting-used-hard-and-filled-up-while-crowds-of-total-strangers-watch-on-and-sometimes-help-out-by-Anya-Aurelie.pdf
    • http://muicuiu.dumb1.com/8a06a01a08a07a00/Wild-Horse-Country-The-History-Myth-and-Future-of-the-Mustang-America-s-Horse-by-Davi