Malicious PDF — malware analysis report

Static analysis result for SHA-256 639585f5bcd7add4…

MALICIOUS

PDF

17.4 KB Created: 2019-05-03 05:07:29 +01:00 Authoring application: mPDF 5.7
MD5: 9bd7a9a5ed2fef109cf82d6c6b3d5545 SHA-1: b84ea2dcd0b06c09d799a63149c28d38a2af5ce7 SHA-256: 639585f5bcd7add419e58cd6f8471e52a1c17b4b71a2e46f3344c2ec89dc0f6e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, all hosted on the suspicious domain 'loaminoo.linkpc.net'. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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/4099091091092098/Fortune-Cookie-A-Culinary-Mystery-11-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/2091090091097093/Lemon-Tart-A-Culinary-Mystery-1-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/9093091091093098/Banana-Split-A-Culinary-Mystery-7-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/5092097093090096/Tres-Leches-Cupcakes-A-Culinary-Mystery-8-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/3091095095094096/Devil-s-Food-Cake-A-Culinary-Mystery-3-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/2097093098097096/A-Lady-s-Favor-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/4096099095094091/The-Vicar-s-Daughter-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/2094094096092094/A-Heart-Revealed-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/1099095099095098/Sheep-s-Clothing-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/2091090094090098/Daisy-The-Newport-Ladies-Book-Club-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/4098098090091090/A-Country-Christmas-Timeless-Regency-Collection-Book-5-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/4098098090090094/Autumn-Masquerade-Timeless-Regency-Collection-Book-1-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/4096092092095097/The-Lady-of-the-Lakes-The-True-Love-Story-of-Sir-Walter-Scott-Historical-Proper-Romance-2-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/5095092099092/Cookie-Dough-or-Die-Cookie-Cutter-Shop-Mystery-1-by-Virginia-Lowell.pdf
    • http://loaminoo.linkpc.net/1091092090097090097/All-That-Makes-Life-Bright-The-Life-and-Love-of-Harriet-Beecher-Stowe-by-Josi-S-Kilpack.pdf
    • http://loaminoo.linkpc.net/3097099099093096/The-Year-of-the-Fortune-Cookie-Anna-Wang-3-by-Andrea-Cheng.pdf
    • http://loaminoo.linkpc.net/9098097097096094/The-Fortune-Cookie-Principle-The-20-Keys-to-a-Great-Brand-Story-and-Why-Your-Business-Needs-One-by-Bernadette-Jiwa.pdf
    • http://loaminoo.linkpc.net/3096099099090094/Christmas-Cookie-Mystery-Amish-Sweet-Shop-Mystery-2-by-Naomi-Miller.pdf
    • http://loaminoo.linkpc.net/3097099091097097/Tough-Cookie-Maggie-Sullivan-Mystery-2-by-M-Ruth-Myers.pdf
    • http://loaminoo.linkpc.net/1090092091091090092/The-Great-Big-Cookie-Book-Over-250-Scrumptious-Recipes-for-Cookie-Lovers-by-Barbara-Grunes.pdf

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