Malicious PDF — malware analysis report

Static analysis result for SHA-256 38831ea141537d6a…

MALICIOUS

PDF

20.3 KB Created: 2019-04-30 04:34:32 +01:00 Authoring application: mPDF 5.7
MD5: f30f281e9b616dcc740691b797aa0108 SHA-1: 179ae1e7551d5e200a847ad3009b9619c882988a SHA-256: 38831ea141537d6a33a8856365081c4107966091d26f3de640f80c2c94daac51
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files, characteristic of a link farm or SEO poisoning attack. While the specific content of the linked PDFs is benign, the sheer volume and structure suggest an attempt to manipulate search engine results or direct users to potentially malicious content. No scripts were extracted, and the document body was not readable, limiting further analysis of the exact intent beyond link distribution.

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.lin
    • http://loaminoo.linkpc.net/9097096098099099/When-I-Was-Your-Age-Volumes-I-and-II-Original-Stories-About-Growing-Up-by-Amy-Ehrlich.pdf
    • http://loaminoo.linkpc.net/1093091098090098/When-I-Was-Your-Age-Volume-One-Original-Stories-About-Growing-Up-by-Amy-Ehrlich.pdf
    • http://loaminoo.linkpc.net/4096098090093091/Twice-Told-Original-Stories-Inspired-by-Original-Artwork-by-Scott-W-Hunt.pdf
    • http://loaminoo.linkpc.net/3091093097090098/Stories-For-Kids-amp-Teens-Includes-16-Original-Stories-with-Covers-Funny-Kids-Stories-Childrens-Book-Bundle-Animals-Character-Building-Lessons-by-Betty-J-Byers.pdf
    • http://loaminoo.linkpc.net/2099098091099092/In-Search-of-Lost-Books-The-Forgotten-Stories-of-Eight-Mythical-Volumes-by-Giorgio-van-Straten.pdf
    • http://loaminoo.linkpc.net/3091093094099099/Stories-Kids-Learn-From-19-Short-Stories-for-Growing-Kids-by-Betty-J-Byers.pdf
    • http://loaminoo.linkpc.net/1097096096096095/Born-This-Way-Real-Stories-of-Growing-Up-Gay-by-Paul-V-Vitagliano.pdf
    • http://loaminoo.linkpc.net/8094091092091097/Rinkitink-in-Oz-Original-Oz-Stories-1916-by-L-Frank-Baum.pdf
    • http://loaminoo.linkpc.net/8092091099091099/The-Emerald-City-of-Oz-Original-Oz-Stories-1910-by-L-Frank-Baum.pdf
    • http://loaminoo.linkpc.net/4094095096099097/Things-That-Go-Bump-in-the-Night-A-Collection-of-Original-Stories-by-Jane-Yolen.pdf
    • http://loaminoo.linkpc.net/1096095096093099/This-Is-Not-Chick-Lit-Original-Stories-by-America-s-Best-Women-Writers-by-Elizabeth-Merrick.pdf
    • http://loaminoo.linkpc.net/1099091099090099/Small-Bamboo-Growing-Up-and-Growing-Old-With-My-Vietnamese-Australian-Family-by-Tracy-Vo.pdf
    • http://loaminoo.linkpc.net/4090098090098/The-Original-Illustrated-Sherlock-Holmes-37-Short-Stories-Plus-a-Complete-Novel-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/1090097095094096091/Dangerous-Women-Original-Stories-from-Today-s-Greatest-Suspense-Writers-by-Otto-Penzler.pdf
    • http://loaminoo.linkpc.net/1093093093098/Knucklehead-Tall-Tales-and-Mostly-True-Stories-of-Growing-Up-Scieszka-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/9097097090095098/Steven-Ehrlich-Houses-by-Steven-Ehrlich.pdf
    • http://loaminoo.linkpc.net/3098097094093099/Stars-Original-Stories-Based-on-the-Songs-of-Janis-Ian-by-Janis-Ian.pdf
    • http://loaminoo.linkpc.net/1090090094092097/Complete-Original-Short-Stories-of-Guy-De-Maupassant-by-Guy-de-Maupassant.pdf
    • http://loaminoo.linkpc.net/9098093096090/Growing-Up-in-Levittown-Again-Growing-Up-in-Levittown-Again-1-by-Molly-Maguire-McGill.pdf
    • http://loaminoo.linkpc.net/9097096098092091/Thumbelina-by-Amy-Ehrlich.pdf

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