Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6c2bac8d2a3949d…

MALICIOUS

PDF

17.1 KB Created: 2019-04-30 03:11:30 +01:00 Authoring application: mPDF 5.7
MD5: 99f0194adb226aed5703c9ec3fc739da SHA-1: 5caa5bbf88651fa97b43956fb46ea85cc2ffc17a SHA-256: f6c2bac8d2a3949d24dab0ff7996cfa9b8786d26561fcc22459b41eaf15427fe
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links, identified as a PDF SEO link farm. While the specific URLs are currently marked as benign, the sheer volume and the heuristic firing suggest an attempt to manipulate search engine results or distribute potentially harmful content through these links. No scripts were extracted from this sample.

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/2096098099093091/Who-s-Afraid-of-the-Big-Bad-Book-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/4091090098092098/But-Excuse-Me-That-Is-My-Book-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/1096094093098090/that-pesky-rat-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/3098090092098098/The-Princess-and-the-Pea-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/2097095098096/I-Will-Never-Not-Ever-Eat-a-Tomato-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/2095093092098099/I-Am-Not-Sleepy-and-I-Will-Not-Go-to-Bed-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/4099090091091094/One-and-Only-The-Freedom-of-Having-an-Only-Child-and-the-Joy-of-Being-One-by-Lauren-Sandler.pdf
    • http://loaminoo.linkpc.net/4098090098092095/Clarice-Bean-That-s-Me-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/7090093093092099/Maude-The-Not-So-Noticeable-Shrimpton-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/4094094098092/Blink-and-You-Die-Ruby-Redfort-6-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/1090097093096090099/Clarice-Bean-Guess-Who-s-Babysitting-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/7096091091099/Pick-Your-Poison-Ruby-Redfort-5-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/5094098093099/Catch-Your-Death-Ruby-Redfort-3-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/6095095097095093/Lauren-Daigle---Look-Up-Child-by-Lauren-Daigle.pdf
    • http://loaminoo.linkpc.net/1090094091098091096/Child-Adolescent-Mental-Health-CNS-Review-Child-Adolescent-Nurse-Review-Book-1-by-Kathleen-Courtney.pdf
    • http://loaminoo.linkpc.net/7098099095094/Hang-in-There-Bozo-The-Ruby-Redfort-Emergency-Survival-Guide-for-Some-Tricky-Predicaments-Ruby-Redfort-0-5-by-Lauren-Child.pdf
    • http://loaminoo.linkpc.net/7090090094094096/Out-of-the-Mist-Can-t-Help-Falling-Book-1-by-Lauren-Giordano.pdf
    • http://loaminoo.linkpc.net/3097096098090090/Siren-s-Surge-The-Sea-King-s-Daughters-Book-5-by-Lauren-Harris.pdf
    • http://loaminoo.linkpc.net/4098093097098090/The-Book-of-Little-Folk-Faery-Stories-and-Poems-from-Around-the-World-by-Lauren-A-Mills.pdf
    • http://loaminoo.linkpc.net/2091096090098099/A-Child-of-Fire-Book-of-One-4-by-Jordan-Baker.pdf
    • http://loaminoo.linkpc.net/4098

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